private static boolean check(String str) { char[] b = str.toCharArray(); System.out.println(Arrays.toString(b)); char[][] arr = new char[3][4]; for(int i = 0;i<3;i++) { for(int j = 0;j<4;j++) { arr[i][j] = b[i*4+j]; } } int count = 0; for(int i = ...