(A) Div. 7 (Codeforces)

#include <bits/stdc++.h>

using namespace std;

int main(){
    int T;
    cin >> T;
    while (T--) {
        int n;
        cin >> n;
        if (n % 7 == 0) {
            cout << n << endl;
            continue;
        }
        int r = n % 7;
        int d = n % 10;
        if (d - r >= 0) {
            cout << n - r << endl;
        } else {
            cout << n + (7 - r) << endl;
        }
    }
}