문제
풀이
#include <iostream>
#include <string>
using namespace std;
void solve(void) {
int k; string n; cin >> k >> n;
for (char c : n) {
cout << (c - '0' + k) % 10;
}
cout << "\n";
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t; cin >> t;
while (t--) solve();
return 0;
}