0分求调

#include <bits/stdc++.h>
using namespace std;
int main (){
	string sct, key;
	cin >> sct>> key;
	for (int i=0, j=0;i<sct.length();i++,j++){
		if (j>key.length) j-=key.length(); 
		if (key[j]>='A'&&key[j]<='Z')sct[i]=sct[i]-(key[i]-'A');
		if (key[j]>='A'&&key[j]<='Z')sct[i]=sct[i]-(key[i]-'a');
	}
	cout << sct;
	return 0;
}