zoj 1240 IBM Minus One

#include "iostream"#include "string"using namespace std;int main(){int TestCase, casecount = 0;cin >> TestCase;while (TestCase--){string str;cin >> str;casecount++;int length = str.size();string ans = "";for (int i = 0; i < length; i++){if (str[i] != 'Z')ans += str[i]+1;elseans += 'A';}cout << "String #" << casecount << endl << ans << endl;cout << endl;}}