#include #include #include #include #include #include #include using namespace std; typedef long long LL; void solve(vector >& board, int x, int y){ int target = x + y*4 + 1; if(x > 0 && board[y][x-1] == target){ swap(board[y][x], board[y][x-1]); solve(board, x-1, y); } if(x < 3 && board[y][x+1] == target){ swap(board[y][x], board[y][x+1]); solve(board, x+1, y); } if(y > 0 && board[y-1][x] == target){ swap(board[y][x], board[y-1][x]); solve(board, x, y-1); } if(y < 3 && board[y+1][x] == target){ swap(board[y][x], board[y+1][x]); solve(board, x, y+1); } } int main(){ vector > board(4, vector(4)); for(int y = 0; y < 4; y++){ for(int x = 0; x < 4; x++){ cin >> board[y][x]; } } for(int y = 0; y < 4; y++){ for(int x = 0; x < 4; x++){ if(board[y][x] == 0){ solve(board, x, y); y = 4; break; } } } bool ans = true; for(int y = 0; y < 4; y++){ for(int x = 0; x < 4; x++){ int target = 1 + x + y*4; if(x == 3 && y == 3) target = 0; if(board[y][x] != target) ans = false; } } cout << (ans? "Yes": "No") << endl; return 0; }