Codeforces 540A CombinationLock program in java

CombinationLock.java

import java.util.Scanner;
public class CombinationLock
{
    public static void main(String[] args)
    {
        Scanner z=new Scanner(System.in);
        int a=z.nextInt();
        String b=z.next();
        String c=z.next();
        int p1=0;
        int[] s1=new int[a];
        int[] s2=new int[a];
        for(int p=0;p<a;p++)
            s1[p]=Character.getNumericValue(b.charAt(p));
        for(int q=0;q<a;q++)
            s2[q]=Character.getNumericValue(c.charAt(q));
        for(int r=0;r<a;r++)
        {
            if(s1[r]>s2[r])
            {
                if(Math.abs(s1[r]-s2[r])>5)
                    p1=p1+(9-s1[r])+(s2[r]+1);
                else
                    p1=p1+Math.abs(s1[r]-s2[r]);
            }
            else
            {
                if(Math.abs(s1[r]-s2[r])>5)
                    p1=p1+(9-s2[r])+(s1[r]+1);
                else
                    p1=p1+Math.abs(s1[r]-s2[r]);
            }
        }
        System.out.println(p1);
    }
}