#include<stdio.h>
int main(){
    int limit,a=0,b=1,next;
    scanf("%d",&limit);
    
    if(limit<0){
        printf("Invalid input");
        return 0;
    }
    next a+b
    while(a<-limit){
        printf("%d",a);
        next = a + b;
        a = b;
        b = next;
    }
    return 0;
}