Guess the Number

Bob and his older brother Albert enjoy playing a game called "Guess the Number." In this game, Bob selects a number $K$ within the range from $1$ to $N$. Albert then tries to guess the number by suggesting different numbers, and Bob indicates whether the guessed number is less than, greater than, or equal to his chosen number. Albert always follows the strategy below:

1. Albert sets A = 1 and B = N. 2. He calculates $M$, the integer part of the average of $A$ and $B$. 3. Albert guesses the number $M$. 4. If Bob says "Greater", Albert sets A = M + 1 and returns to step 2. 5. If Bob says "Less", Albert sets B = M - 1 and returns to step 2. 6. If Bob says "Guessed", the game ends.

For example, let N = 9 and Bob's chosen number K = 6. Initially, A = 1, B = 9. Albert guesses $5$ and receives the response "Greater". Now A = 6, B = 9. The next guessed number is $7$. Bob replies "Less". Now A = 6, B = 6. Albert guesses $6$ and Bob says "Guessed".

Write a program to determine how many numbers Albert will say before he gets the response "Guessed" from Bob.