令人绝望

#include<bits/stdc++.h>
using namespace std;
const double pi=3.141593;
int main(){
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    switch(n){
        case  1:puts("I love Luogu!");break;
        case  2:puts("6 4");break;
        case  3:puts("3 12 2");break;
        case  4:printf("%0.3f\n",500/3);break;
        case  5:printf("%d",(220+260)/(20+12));break;
        case  6:cout<<sqrt(6*6+9*9);break;
        case  7:puts("110\n90\n0");break;
        case  8:cout<<pi*10<<endl<<pi*25<<endl<<4/3*pi*125<<endl;break;
        case  9:puts("22");break;
        case 10:puts("9");break;
        case 11:cout << 1.0*100/3 << endl;break;
        case 12:puts("13 R");break;
        case 13:cout<<(int)(pow(4/3*pi*(4*4*4+10*10*10),1.0*1/3));break;
        case 14:puts("50");break;
        default:puts("I roll roll you");
    }
    return 0;
}