fun game numbers, please test it :)

The principle of this game is to guess a 4-digit number that has these conditions:

* This number begins with 0 further.

* None of the figures is repeated.

The result is in the form of cows and bulls, cows indicates a figure from your proposal but which is not in its place and a bull indicates a figure from your proposal which is in its spot. As you know a game that is not lost has no taste then the game ends if you fail to find this number in 7 trials knowing you have up to 60 seconds to try in each test and in this case you lose, otherwise if you find the number before or on the 7th test you win.