Problem 2A
Test 1
 Computer
 3
Solution
 terCompu

Test 2
 Program
 1
Solution
 mProgra

Test 3
 testing
 2
Solution
 ngtesti

Test 4
 ABCDEFGHIJ
 5
Solution
 FGHIJABCDE

Test 5
 ABCDEFGHIJKLM
 12
Solution
 BCDEFGHIJKLMA

Test 6
 ABCDEFGHIJKLMNO
 1
Solution
 OABCDEFGHIJKLMN

Test 7
 ABCDEFGHIJKLMNO
 14
 
Solution
 BCDEFGHIJKLMNOA