#include <stdio.h>
#include <stdlib.h>

int main(){

/*************** practice ******************/
    // declare variables
    int n;
    int* scores; // 將此指標當作array來用

    // good habit - remove the remaining '\n' after using scanf
    scanf("%d",&n);
    char tmp_ch[1];
    gets(tmp_ch);

    // get memory
    size_t scores_size = sizeof(int)*n;
    scores = (int*)malloc(scores_size);

    // get input and sum
    int i, sum = 0;
    for (i = 0; i < n; i++){
//        scanf("%d",&scores[i]); // kind of redundant
        scanf("%d",scores+i); // better
        sum += *(scores+i);
    }

    // show result
    printf("sum: %d\n", sum);

    return 0; // 0 - normal exit
}