#include<stdio.h>
int main(){
    int n;
    scanf("%d", &n);
    if ( n >= 1 && n <= 3){
        printf("1\n1\n");
    }
    else if (n >= 4 && n <= 6){
        printf("2\n1\2\n");
    }
    else if (n >= 7 && n <= 9){
        printf("3\n2\n1\n");
    }
    else if (n == 10){
        printf("5\n3\n2\n1\n");
    }
    else {
        printf("Invalid input\n")
    }
    return 0;
}