#include<stdio.h>
#include<math.h>

int fact(int a)    
{    
    int i,fact=1;       
    for(i=1;i<=a;i++)
    {    
      fact=fact*i;    
    }    
    return fact;
}

int main()
{
    int n,r;
    float permu,combi;
    printf("Enter the value of n: \n");
    scanf("%d",&n);
    printf("Enter the vlaue of r: \n");
    scanf("%d",&r);
    permu= fact(n)/fact(n-r);
    combi=fact(n)/(fact(n-r)*fact(r));
    printf("The permutation nPr: %.2f\n",permu);
    printf("THe combination nCr: %.2f\n",combi);
    return 0;
}