public class Sahovnica {
    public  static  void  main(String banana[]){
        int a = 8;
        for(int j = 0; j < a; j = j + 1) {
            for (int i = 0; i < a; i = i + 1) {
                if(j % 2 == 0 ){
                    if(i % 2 == 0) {
                        System.out.print("1");
                    }
                    else{
                        System.out.print("2");
                    }
                }
                else{
                    if(i % 2 == 0) {
                        System.out.print("2");
                    }
                    else{
                        System.out.print("1");
                    }
                }
            }
            System.out.println();
        }
    }
}