#include <stdio.h>
#include <stdio.h>

static int do_math2 (int q, int w){
    return w*q;
}

static int do_math (int r, int s){
    int t=s-r;
    return do_math2(t, s);
}

int main (void)
{
    volatile int a = 0;
    int b = 1;
    volatile int c = 42;
    int y;
    int x = do_math ( 5, 7);
    if(x>0)
	y=a;
    else
	y=b;
    return y;
}