#include<stdio.h>
#include<conio.h>
#include<math.h>
void main ()
{
int n,r,factn=1,factr=1,factnmr=1,i,npr,ncr;
printf("Enter n and r : \n");
scanf("%d%d",&n,&r);
for(i=1;i<=n;++i) factn=factn*i;
for(i=1;i<=r;++i) factr=factr*i;
for(i=1;i<=n-r;++i) factnmr=factnmr*i;
npr=factn/factnmr;
ncr=npr/factr;
printf("Permutation value : %d \n",npr);
printf("Combination Value : %d \n",ncr);
getch();
}