#include <bits/stdc++.h>

int main() {
    int a, t  = 1;

    while(true){
        scanf("%d", &a);
        if (a == 0){
            break;
        }

        printf("Teste %d\n", t);

        int cofreJ = 0, cofreZ = 0;
        for(int i = 1; i <= a; i++){
            int J, Z;
            scanf("%d %d", &J, &Z);
            cofreJ += J;
            cofreZ += Z;
            printf("%d\n", cofreJ - cofreZ);
        }

        t++;
        printf("\n");
    }
}