import java.util.ArrayList; import java.util.Arrays; import java.util.HashSet; import java.util.LinkedHashMap; import java.util.LinkedList; import java.util.Scanner; import java.util.Set; import java.util.TreeSet; public class Main { public static final int SIZE = 4; public static final int[] vs = {1, 0, -1, 0}; public static boolean is_clear(int[][] board){ for(int i = 0; i < SIZE; i++){ for(int j = 0; j < SIZE; j++){ final int number = ((i * SIZE) + j + 1) % 16; if(board[i][j] != number){ return false; } } } return true; } public static boolean has_solution(int[][] board, boolean[][] moved){ for(int i = 0; i < SIZE; i++){ for(int j = 0; j < SIZE; j++){ final int number = ((i * SIZE) + j + 1) % 16; if(board[i][j] != number && moved[i][j]){ return false; } } } return true; } public static boolean dfs(final int x, final int y, int[][] board, boolean[][] moved){ if(!has_solution(board, moved)){ return false; }else if(is_clear(board)){ return true; } for(int v = 0; v < vs.length; v++){ final int nx = x + vs[v]; final int ny = y + vs[(v + 1) % vs.length]; if(nx < 0 || nx >= SIZE || ny < 0 || ny >= SIZE){ continue; }else if(moved[ny][nx]){ continue; } { int tmp = board[y][x]; board[y][x] = board[ny][nx]; board[ny][nx] = tmp; } moved[y][x] = true; if(dfs(nx, ny, board, moved)){ return true; } moved[y][x] = false; { int tmp = board[y][x]; board[y][x] = board[ny][nx]; board[ny][nx] = tmp; } } return false; } public static void main(String[] args){ Scanner sc = new Scanner(System.in); boolean[][] moved = new boolean[SIZE][SIZE]; int[][] board = new int[SIZE][SIZE]; int sx = -1, sy = -1; for(int i = 0; i < SIZE; i++){ for(int j = 0; j < SIZE; j++){ board[i][j] = sc.nextInt(); if(board[i][j] == 0){ sx = j; sy = i; } } } System.out.println(dfs(sx, sy, board, moved) ? "Yes" : "No"); } }