#include<stdio.h>
int main(){
    int n,a=1.b=1,c;
    scanf("%d",&n);
    if(n<0)
    {
        printf("invalid input");
    }
    while(a<=n)
    {
        printf("%d ",a);
        c=a+b;
        a=b;
        b=c;
    }
}