#include <stdio.h>
/*global variables*/
int a,b;
/*function to set values to the global variables*/
void setValues(void)
{
a=100;
b=200;
}
int main()
{
/*local variables*/
int x,y;
x=10;
y=20;
setValues();
printf("a=%d, b=%d\n",a,b);
printf("x=%d, y=%d\n",x,y);
return 0;
}