#include <stdio.h>

int main () {
  int t = 0;
  char n[4000001] = "";
  long long m = 0LL;
  
  int res = 0;
  
  res = scanf("%d", &t);
  while (t > 0) {
    long long ans = 0LL;
    int idx = 0;
    res = scanf("%s", n);
    res = scanf("%lld", &m);
    while (n[idx] != '\0') {
      ans *= 10LL;
      ans += (long long)(n[idx]-'0');
      ans %= m;
      idx++;
    }
    ans += m;
    ans *= (ans+1LL);
    ans /= 2LL;
    printf("%lld\n", ans%m);
    t--;
  }
  
  return 0;
}