#include<stdio.h>
int main() {
    int n;
    scanf("%d",&n);
    printf("%d",n);
    if(i=0;i<5;i++) {
        printf("Invalid input");
    }
    else if (i=0;i<=5;i++) {
        printf("Invalid input");
    } 
    else {
        printf("the factorial of the number",n);
    }
        
    return 0;
}