freopen.c

#define _CRT_SECURE_NO_WARNINGS

#include <stdio.h>


int main() {
	freopen("input.txt", "r", stdin);
	freopen("output.txt", "w", stdout);

	int a, b;
	scanf("%d %d", &a, &b);

	printf("%d + %d = %d\n", a, b, a + b);

	return 0;
}