#include<stdio.h>

void Clean(int floor)
{
    if(floor==0)
    {
        printf("\n");
        return;
    }
    else
    printf("%d th Floor Left Side is Clean\n",floor);
    Clean(floor-1);
    printf("%d th Floor Right Side is Clean\n",floor);
}


int main()
{

    int floor = 5;
    Clean(floor);
}