#include <stdio.h>

int main()
{
    bool got;
    int n, t, a, i, r;
    int v[100];

    scanf (" %d %d", &n, &t);

    got = false;
    a = 0;
    for (i = 0; i < n; i++) {
        scanf (" %d", &v[i]);
        a += v[i];
        if (a > t && !got) {
            r = i;
            got = true;
        }
    }

    printf("%d\n", got?r:n);

    return 0;
}