20-1

#include <iostream.h>

long myTavan(long a, long b);

void main(void)
{
	long x = 4, y=3, tavan;
	tavan = myTavan(x,y);
}

long myTavan(long c, long d)
{
	long t=1;
	int i;
	for (i=0 ; i<d ; i++)
		t *= c;
	return t;
}