#include <stdio.h>

int fun();
int main() {
    int a,b;
    a=5;
    b=7;
    fun(a,b);
    printf ("\na=%d & b=%d",a,b);
}

int fun (){
    int a,b;
    a=7;
    b=5;
    printf("\na=%d & b=%d",a,b);
    
}