#include<stdio.h>
int cal(int *array, int n)
{
int sum = 0;
for (int i = 0; i < n; ++i)
sum += *(array +i);
return sum;
}
int main()
{
int n;
scanf("%d", &n);
int arr[n];
for (int i = 0; i < n; ++i)
scanf("%d", &arr[i]);
int num = cal(arr, n);
printf("%d", num);
return 0;
}

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