#include <cstdio>
#include <iostream>
#include <queue>
using namespace std;

int main(int argc, char** argv) {

	freopen("sample_input.txt", "r", stdin);

	setbuf(stdout, NULL);

	int T;
	int test_case;

	scanf("%d", &T);
	for(test_case = 1; test_case <= T; test_case++) {

        int N, S;
        int sum=0, n=0, smallest=0;
        scanf("%d %d", &N, &S);
        queue<int> num_list;

        for (int i=0;i<N;++i) {
        	int num;
        	scanf("%d", &num);
        	sum+=num; n++;

        	num_list.push(num);

        	while (sum >= S) {
        		if (!smallest || smallest > n) {
        			smallest = n;
        		}

        		int front = num_list.front();
        		sum-=front;
        		num_list.pop();
        		n--;

        	}
        }

		printf("#testcase%d\n", test_case);
		printf("%d\n",smallest);

	}

	return 0;
}