There are a total of 26 letters that can be made to follow. There are 4 independent events here, namely:
First: Starts with K and followed by two additional letters = 1 * 26 * 26 = 676
Second: Starts with K and followed by three additional letters = 1 * 26 * 26 * 26 = 17,576
Third: Starts with W and followed by two additional letters = 1 * 26 * 26 = 676
Fourth: Starts with W and followed by three additional letters = 1 * 26 * 26 * 26 = 17,576
The total possibilities that can be made from here is:
Total possibilities = 676 + 17,576 + 676 + 17,576
Total possibilities = 36,504