#include<stdio.h>

void useGlobal( void );

int x = 1; /* global variable */

int main( void )
{

printf("x in main is %d\n", x);

useGlobal();

printf("\nx in main after calling useGlabal is %d\n", x);

return 0;
}


void useGlobal(void)
{
printf("\n x is %d on entering useGlobal.\n", x);

x *= 10;

printf("\n x is %d on exiting useGlobal.\n", x);
}