Using C to solve this question

Description

Gomoku, also called Five in a Row, is an abstract strategy board game. It is traditionally played with black and white stones on a 1919 board.The winner is the first player to form an unbroken chain of five stones horizontally, vertically, or diagonally. Please write a program to determine if there is a winner or not.

Input

Input content 19 line, each line content 19 character and a new line

O represent white stone, X represent black stone and _ means there is no stone on that spot.

Output

Output "White" if white win, "Black" if black win, "No winner" if no one win.