Description Each unit -LRB- NUMBER@1 , NUMBER@2 , ... , NUMBER@3 -RRB- was assigned a separate letter , each tens -LRB- NUMBER@4 , NUMBER@5 , ... , NUMBER@6 -RRB- a separate letter , and each hundreds -LRB- NUMBER@7 , NUMBER@8 , ... , NUMBER@9 -RRB- a separate letter .

Each unit -LRB- NUMBER@1 , NUMBER@2 , ... , NUMBER@3 -RRB- was assigned a separate letter , each tens -LRB- NUMBER@4 , NUMBER@5 , ... , NUMBER@6 -RRB- a separate letter , and each hundreds -LRB- NUMBER@7 , NUMBER@8 , ... , NUMBER@9 -RRB- a separate letter .
