#include <bits/stdc++.h>  
using namespace std; 
long long int fibonacci(long long int n){ // 創立一個函式紀錄費氏數列
    if (n<=1) return n;  // 當n<=1時，回傳n
    long long int a=0,b=1,c;  
    for (long long int i=2;i<=n;i++){  // 當i<=n時，執行迴圈
        c=a+b;  
        a=b;  
        b=c;  
    }  
    return b; 
}  

int main() {  
    long long int n;  
    while (cin>>n&&n!=0){  
        cout<<fibonacci(n+1)<<endl;  // 輸出費氏數列
    }  
    return 0;   
}  

這標題.............................................................🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣🤣

下巴 111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111

111111

I don't know what happened bro   why is bee called bee

because B love 11

i dont know what you are talking about╰(*°▽°*)╯(╯°□°）╯︵ ┻━┻( ´･･)ﾉ(._.`)( •̀ ω •́ )✧😁💕💖😎😜🐱‍🏍✨🐱‍👤😃👀