#include <stdio.h>

int main()
{
	int i, j, q, Q, N, T, w[10];
	scanf("%d", &Q);
	for (q = 1; q <= Q; q++) {
		scanf("%d %d", &N, &T);
		if (T % 2 != 0) {
			printf("No\n");
			continue;
		}
		printf("Yes\n");
		for (i = 1; i <= N; i++) w[i] = T / (N * 2);
		for (i = 1; i <= N; i++) T -= w[i] * 2;
		while (T > 0) {
			for (i = 1; i <= N && T > 0; i++) {
				w[i]++;
				T -= 2;
			}
		}
		for (i = 1; i <= N; i++) for (j = i + 1; j <= N; j++) printf("%d %d %d\n", i, j, w[i] + w[j]);
	}
	fflush(stdout);
	return 0;
}