char change[26], str[5000]; using namespace std; void CheckChangeRule() { int i; for (i = 0;i < 26;i ++) { if ( ①) change[i] -= 'A' - 'a'; } } void ChangeString() { int i; for (i = 0;i { if ( ②) str[i] = change[str[i] - 'A'] -'a' + 'A'; else } } int main() { int i; cin >> str ; cin >> change; CheckChangeRule(); cout << str << endl; return 0; }