using System; namespace ConsoleApp11 { class Program { static void Main(string[] args) { int count = 0; var input = Console.ReadLine().Split(' '); int W = int.Parse(input[0]); int H = int.Parse(input[1]); string C = input[2]; for(int i = 0; i < H; i++) { while (true) { if(C == "B") { Console.Write("B"); count++; if(count >= W) { break; } Console.Write("W"); count++; if(count >= W) { break; } } if(C == "W") { Console.Write("W"); count++; if(count >= W) { break; } Console.Write("B"); count++; if(count >= W) { break; } } } if(C == "W") { C = "B"; } else if(C == "B") { C = "W"; } Console.WriteLine(); count = 0; } Console.WriteLine(); } } }