#include <stdio.h>

int main(void)
{
	int 1nr;
	int 2nr;
	int outcome;
	char todo;
	
	outcome = 1nr-2nr
	
	printf("number 1\n");
	scanf("%d", 1_nr);
	printf("number 2\n");
	scanf("%d\n", 1_nr);
	printf("%d", outcome);
	return 0;
}