#include <stdio.h>
#include <stdlib.h>

void main(void)
{
    int x,y=1,k=0,i=3,j=1;

    printf("Enter The Position : ");
    scanf("%d",&x);

    if(x==1) printf("The Number Is 2");
    else
    {
        for(i;i>0;i+=2,k=0)
        {
            for(j=1;j<i;j++)
            {
                if(i%j==0) k++;
                if(k>1) break;
            }
            if(k==1) y++;
            else continue;
            if(y==x) {printf("The Number Is %d",i); break;}
        }
    }
    return 0;
}