-> print Record number: 0 -1 not valid Record number: 1 -1 not valid Record number: 2 -1 not valid Record number: 3 -1 not valid Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 -1 not valid Record number: 7 -1 not valid Record number: 8 -1 not valid Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 -1 not valid Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 0 200 -> insert 1 30 70 blaksburg1 -> print Record number: 0 -1 not valid Record number: 1 0 ( 30, 70 ) blaksburg1 Record number: 2 -1 not valid Record number: 3 -1 not valid Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 -1 not valid Record number: 7 -1 not valid Record number: 8 -1 not valid Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 -1 not valid Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 20 180 -> remove 1 -> print 1 Error, there is no record at that record number -> insert 2 30 60 blaksburg2 -> print 2 ( 30, 60 ) blaksburg2 -> insert 0 30 60 blaksburg0 -> insert 1 30 70 blaksburg1 -> insert 3 30 50 blaksburg3 -> insert 4 30 40 blaksburg4 -> insert 5 30 30 blaksburg5 -> insert 6 30 20 blaksburg6 -> insert 7 30 10 blaksburg7 -> insert 8 30 30 blaksburg8 -> insert 9 30 20 blaksburg9 -> insert 10 30 10 blaksbur10 There is not enough free memory to insert the requested record. -> Error, that is not a known command -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 40 ( 30, 70 ) blaksburg1 Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 60 ( 30, 50 ) blaksburg3 Record number: 4 80 ( 30, 40 ) blaksburg4 Record number: 5 100 ( 30, 30 ) blaksburg5 Record number: 6 120 ( 30, 20 ) blaksburg6 Record number: 7 140 ( 30, 10 ) blaksburg7 Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 180 ( 30, 20 ) blaksburg9 Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 -1 not valid Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length -> remove 1 -> print 1 Error, there is no record at that record number -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 -1 not valid Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 60 ( 30, 50 ) blaksburg3 Record number: 4 80 ( 30, 40 ) blaksburg4 Record number: 5 100 ( 30, 30 ) blaksburg5 Record number: 6 120 ( 30, 20 ) blaksburg6 Record number: 7 140 ( 30, 10 ) blaksburg7 Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 180 ( 30, 20 ) blaksburg9 Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 -1 not valid Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 40 20 -> remove 9 -> print 9 Error, there is no record at that record number -> Error, that is not a known command -> remove 4 -> print 4 Error, there is no record at that record number -> remove 5 -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 -1 not valid Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 60 ( 30, 50 ) blaksburg3 Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 120 ( 30, 20 ) blaksburg6 Record number: 7 140 ( 30, 10 ) blaksburg7 Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 -1 not valid Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 80 40 40 20 180 20 -> insert 13 58 112 ChristiansburgVA -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 -1 not valid Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 60 ( 30, 50 ) blaksburg3 Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 120 ( 30, 20 ) blaksburg6 Record number: 7 140 ( 30, 10 ) blaksburg7 Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 80 ( 58, 112 ) ChristiansburgVA Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 40 20 180 20 106 14 -> remove 3 -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 -1 not valid Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 -1 not valid Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 120 ( 30, 20 ) blaksburg6 Record number: 7 140 ( 30, 10 ) blaksburg7 Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 80 ( 58, 112 ) ChristiansburgVA Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 40 40 180 20 106 14 -> Error, that is not a known command -> remove -2 Error, that is not a valid record number -> remove 7 -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 -1 not valid Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 -1 not valid Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 120 ( 30, 20 ) blaksburg6 Record number: 7 -1 not valid Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 80 ( 58, 112 ) ChristiansburgVA Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 40 40 140 20 180 20 106 14 -> remove 6 -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 -1 not valid Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 -1 not valid Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 -1 not valid Record number: 7 -1 not valid Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 80 ( 58, 112 ) ChristiansburgVA Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 106 54 40 40 180 20 -> Error, that is not a known command -> remove 19 Error, there is no record at that record number -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 -1 not valid Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 -1 not valid Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 -1 not valid Record number: 7 -1 not valid Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 80 ( 58, 112 ) ChristiansburgVA Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 106 54 40 40 180 20 -> remove 20 Error, that is not a valid record number -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 -1 not valid Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 -1 not valid Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 -1 not valid Record number: 7 -1 not valid Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 -1 not valid Record number: 12 -1 not valid Record number: 13 80 ( 58, 112 ) ChristiansburgVA Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 106 54 40 40 180 20 -> insert 11 100 90 blaksbur11 -> print 11 ( 100, 90 ) blaksbur11 -> print Record number: 0 20 ( 30, 60 ) blaksburg0 Record number: 1 -1 not valid Record number: 2 0 ( 30, 60 ) blaksburg2 Record number: 3 -1 not valid Record number: 4 -1 not valid Record number: 5 -1 not valid Record number: 6 -1 not valid Record number: 7 -1 not valid Record number: 8 160 ( 30, 30 ) blaksburg8 Record number: 9 -1 not valid Record number: 10 -1 not valid Record number: 11 106 ( 100, 90 ) blaksbur11 Record number: 12 -1 not valid Record number: 13 80 ( 58, 112 ) ChristiansburgVA Record number: 14 -1 not valid Record number: 15 -1 not valid Record number: 16 -1 not valid Record number: 17 -1 not valid Record number: 18 -1 not valid Record number: 19 -1 not valid Freeblock List: Position Length 40 40 126 34 180 20 -> Error, that is not a known command ->