#include <bits/stdc++.h>   using namespace std;   long long n;   int k;   long long a[100050];   int main() {     cin >> n >> k;     for (int i = 1; i <= k; i++) cin >> a[i];     long long A = 1, B = 0, C = 0;     for (int i = 1; i <= k; i++) {       if (n - n % a[i] > C) {         A = 1ll * i, B = n / a[i];         C = n - n % a[i];       }     }     cout << A <<     << B;     return 0;   }   