#include<stdio.h>
#include<stdlib.h>
int calculatepower(int b, int e){
    int* results = (int*)malloc((e + 1)* sizeof(int));
    results[0] = 1;
    for(int i = 1; i <= e; i++){
        results[i] = results[i - 1]*b;
    }
    int result = results[e];
    free(results);
    return result;
}
int main(){
    int n;
    scanf("%d", &n);
    if(n<0){
        printf("Invalid Invalid\n");
        return 0;
    }
    for (int i = 0; i < n; i++){
        int b, e;
        scanf("%d %d", &b, &e);
        if(b < -10 || e < 0 ){
            printf("Invalid Invalid\n");
        }else{
            printf("%lld\n",calculatepower(b, e));
        }
    }
    return 0;
}