
25.Write a program to check whether a character is alphabet or not. 
SOL:
alpha=input('Enter an alphabet:')
if alpha in ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z']:
  print("Yes")
else:
  print("No")
