#include<iostream> int main(){ int a,b,c,d,e,f,g,h,i; a=1*2+1; b=a*2+1; c=b*2+1; d=c*2+1; e=d*2+1; f=e*2+1; g=f*2+1; h=g*2+1; i=h*2+1; printf("%d",i); return 0; }