Game rules.
Objective - to guess a 4-digit number consisting of various numerals.Zero may be at the first position.
The fewer attempts to use, the more get points.Then input 4-digit number with different numbers - for information - how many digits you have to guess,
and how many of them on their victory places.For victory need guessed 4 and 4 in their seats.

Example:
Designed number - 2507
You have entered - 1209
You guessed 2 digits - and a zero-two.
At their places 1 figure - zero.