//tính tich a,b bằng phép cộng
//luy thừa bằng phép công
 
 
#include <stdio.h>
int tich(int a,  int b);
int luythua(int a, int b);
 
int main()
{
	int a=2;
	int b=4;
	int c=luythua(a,b);
	int d= tich(a,b);
	printf("%d\n",d);
	printf("%d",c);
}
int tich(int a,  int b)
{
	int tichAB=0;
	for(int i=1; i<=b; i++){
		tichAB+=a;
	}
	return tichAB;
}
int luythua(int a, int b)
{
	int T=1;
	for(int i=1; i<=b; i++){
		T=tich(T,a);			
	}
	return T;
}

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