||A combination lock on a safe needs a 6-letter sequence to open the safe. This is made from the letters|
A, B, C, D, E, F
with none of them being used twice.
Here are three guesses at the combination
C B A D F E
A E D C B F
E D F A C B
In the FIRST guess only ONE letter is in its correct place.
In the SECOND guess only TWO letters are in their correct places.
In the THIRD guess only THREE letters are in their correct places.
Each of the 6 letters is in its correct place once.
What is the correct combination?