Add 2 decimal number

import java.util.*;
import java.lang.*;

class Main {

	static void calc(int[] arr1, int[] arr2){
		int n = arr1.length;
		//printArray(arr1);
		//printArray(arr2);
		int[] res = new int[n];

		int carry = 0;
		for(int i=n-1; i>=0; i--){

			int add = arr1[i] + arr2[i];
			int mod = add%10 + carry;
			res[i] = mod;
			carry = add/10;
			//System.out.println("mod:"+mod+", carry:"+carry+", res:"+res[i]);
		}
		printArray(res);
	}

	static void printArray(int[] arr){
		for(int i=0; i<arr.length; i++){
			System.out.print(arr[i]+" ");
		}
		System.out.println();
	}

	public static void main(String args[]) {
		// Your code goes here
		Scanner sc = new Scanner(System.in);
		int n1 = sc.nextInt();
		int[] arr1 = new int[n1];
		for(int i=0; i<n1; i++){
			arr1[i] = sc.nextInt(); 
		}

		int n2 = sc.nextInt();
		int[] arr2 = new int[n2];
		for(int j=0; j<n2; j++){
			arr2[j] = sc.nextInt(); 
		}

		calc(arr1,arr2);
	}
}