#include <stdio.h>
int addnumbers(int,int);
int subtractnumbers(int,int);

void main()
{
int x=6;
int y=4;
int answer;
answer=addnumbers(x,y);
printf("%d\n",answer);
answer=subtractnumbers(x,y);
printf("%d\n",answer);
}

int addnumbers(int a,int b)
{
int total;
total=a + b;
return total;		//only possible to return ONE value
}

int subtractnumbers(int a,int b)
{
	int total;
	total=a-b;
	return total;
}

