Description Hit & Blow

How to play
Please answer 4 digits form 0 to 9 which computer(or your counter part) has set as the target answer.
If the digits you answered are correct, it is called as "Blow(B)".
If both the numbers and positions are correct, it is called as "Hit(H)".
For example, computer(or your counter part) has set "1234" as the target answer.
And you answered it as "1357", "1" is correct in both number and position, then the status is "1H".
And "3" is correct in only number, then the status is "1B".
In the result, "1H1B" is shown as follows.
1357 1H1B
In the case of multiple numbers are correct, for example you answered "1345".
The status of "1" is "1H" because it's correct in both number and position.
"3" and "4" are correct in only number, then the status is "2B".
In the result, "1H2B" is shown as follows.
1345 1H2B
Please repeat to answer all 4 digits are correct in both numbers and positions.