to do this you need might pencil and paper 10s and 0s are not a number in the puzzle
theres five numbers
93716.
switch them from lest to greatest.
now switch them alphabetically keep 1 and 9.
now switch 7,9, and 1 alphabetically.
now add by 1 . 9 is gone
switch the new numbers from greatest to least
each number subtract by 4 now times by 1
now add by 3
add by 3
theres a 9 left right?