#include <cstdio>
int num[10];
int main() {
int a, b, sum;
scanf("%d%d", &a, &b);
sum = a + b;
if (sum < 0) {
printf("-");
sum = -sum;
}
int len = 0;
if (sum == 0) {
num[len++] = 0;
}
while (sum)
{
num[len++] = sum % 10;
sum /= 10;
}
for (int k = len - 1; k >= 0; k--) {
printf("%d", num[k]);
if (k > 0 && k % 3 == 0)
printf(",");
}
return 0;
}
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本文标题：1001 A+B Format
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