#include <stdio.h>

int main() {
    int T;
    scanf("%d", &T);

    while (T--) {
        int N;
        scanf("%d", &N);
        int A[N], B[N], C[N];
        
        for (int i = 0; i < N; i++)
            scanf("%d %d %d", &A[i], &B[i], &C[i]);
        
        int sum = 0;
        for (int i = 0; i < N; i++)
            sum += A[i] + B[i] + C[i];
        
        printf("%d\n", sum);
    }

    return 0;
}