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