Java Multiple Sequences

package IntroductionToJava.Exercises;

import java.util.Scanner;

public class TribonacciSpiral {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int firstNum = input.nextInt();
        int secondNum = input.nextInt();
        int thirdNum = input.nextInt();
        int total = 0;
        int[] trib = new int[1000000];

        int firstNumber = input.nextInt();
        int step = input.nextInt();
        int stepNumber = 0;
        int[] spiral = new int[1000000];

        for (int j = 0; j < 20; j++) {
            total = firstNum + secondNum + thirdNum;
            firstNum = secondNum;
            secondNum = thirdNum;
            thirdNum = total;
            trib[j] = total;
        }
        for (int i = 0; i < 20; i++) {
            stepNumber = firstNumber + step;
            firstNumber = stepNumber;
            spiral[i] = stepNumber;
        }

        for (int i : trib) {
            for (int j : spiral) {
                if (i == j) {
                    System.out.println(i);
                    return;
                }
                else {
                    continue;
                }
            }
        }
    }

}