using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace template { class Program { static void Main(string[] args) { string[] s = Console.ReadLine().Split(); bool flag = s[2] == "B"; for (int i = 0; i < int.Parse(s[1]); i++) { bool isB = flag; for (int j = 0; j < int.Parse(s[0]); j++) { Console.Write(isB ? 'W' : 'B'); isB = !isB; } flag = !flag; Console.WriteLine(); } } } }