First we have to consider the die whose top 1, bottom 6, north 2, south 5 west 3 and east 4.  Our  moving  command is "north", "east", "south", or "west". To check which command is to execute we do not need to compare the whole word but just the first character  n,e,s,w. Now simulate it correctly, For example: If the die is in initial position and the moving command is north then after moving the position of the die is top 5, south 6, bottom 2, north 1 west 3 and ease 4.