#include <stdio.h>
int main()
{
int sum = 0;
int input;
while (1) {
printf("μ«μλ₯Ό μ
λ ₯νμΈμ¬ (-1μ μ
λ ₯νλ©΄ μ’
λ£):");
scanf("%d", &input);
if (input == -1){
break;
}
sum += input;
}
printf("μ
λ ₯λ μ«μμ ν©κ³λ %dμ
λλ€.\n", sum);
return 0;
}