#include <stdio.h> main(){ int entrada,teste=1,saida,base,i,aux; scanf("%d",&entrada); while(entrada != -1){ base = 2; aux = 1; for(i=1;i<=entrada;i++){ base += aux; aux *= 2; } printf("Teste %d\n",teste); printf("%d\n",base*base); teste++; scanf("%d",&entrada); } }