#include <stdio.h>
 
int fuga(int x,int y){
	int sum=1,i;
	if( y==0 ){
		return 1;
	}
	for(i=0;i<y;i++)	sum*=x;
 
 
	return sum+fuga(x,y-1);
 
}
 
 
 
 
int main(void) {
	int x=2,y=3,result;
	result=fuga(x,y);
}
 
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