#include <iostream>
#include <cstdio>
#include <cmath>
using namespace std;
int main() {
int n, m, a[105], idx=-1, ma=-1;
scanf("%d%d", &n, &m);
for(int i=0; i<n; i++) scanf("%d", &a[i]), a[i]=ceil((double)a[i]/m);
for(int i=n-1; i>=0; i--) if(a[i]>ma) ma=a[i], idx=i;
printf("%d", idx+1);
return 0;
}
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