#write a program in python to declare a message for an instructing sign in public place
#and get the lenth of that message and count of the number a specific letter in the message:
msg = "No Smoking here"
print(len(msg))
msg.count('o')
msg.count('s',3,5)
msg.count('n')
msg.count('N')
msg.count('O',7)
msg.count('o',7)
msg.count('o',1,7)
msg.count('o',7,15)