#include<stdio.h> int main(){ int i,k; double h,s=0,h1; scanf("%lf %d",&h,&k); h1=h; for(i=0;i<k;i++){ if(i==0){ s+=h; }else{ s+=2*h; } h=h/2; } printf("%.2lf %.2lf\n",h,s); return 0; }
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