#include<iostream> using namespace std; int main() { double y,x; cin>>x; if(x<5){ y=-x+2.5; }else if(x<10){ y=2-1.5*(x-3)*2; }else{ y=x/2-1.5; } printf("%.3lf",y); */ int i,sum=0,j,l; for(j=1;j<=1000;j++){ cin>>i; sum+=i; if(sum>=100000){ break; } } printf("%d %.2lf",j,sum*1.0/j); return 0; }