20-2

#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;
	for ( ; d ; d--)
		t *= c;
	return t;
}