View Code of Problem 73

#include<stdio.h>
#include<string.h>
int main(){
	char a[100],c;
	int i,len=0,j=1,f1,f2,s1,s2,m1,m2,x,y,n;
	double aa=0,k,zi=1,mu=2,m,h;
	scanf("%d",&n);
	for(i=1;i<n;i++){
		j=(j+1)*2;
	
	}
		printf("%d\n",j);
	return 0;
}