Runtime error(NZEC) in byteland ques. (java program)

The following java program is showing runtime error(NZEC). Please help me to fix this.

 import java.util.*;
 class coins {
public static void main(String args[])
{
    int i=10;
    int n=0;
    Scanner in=new Scanner(System.in);
    while(i>0)
    {

        n=in.nextInt();
        System.out.println(calc(n));
        i--;

    }

}
static int calc(int x)
{
    if(((x%2)+(x%3)+(x%4))==0)
    {
        return (calc(x/2)+calc(x/3)+calc(x/4));
    }
    return x;
}

}