#include<stdio.h>
int multiplynumbers(int n);
int main()
{
    int n;
    printf("Enter a value : \n");
    scanf("%d",&n);
    printf("The factorial of %d = %d",n,multiplynumbers(n));
}
int multiplynumbers(int n)
{
    if(n>=1)
        return n*multiplynumbers(n-1);
    else
        return 1;
}