To construct your Huffman tree, you should use the phrase beside your student ID and initials.
100002762(RM): EXPENSIVE_DOCTORS_TO_CURE_THEIR_STONE_HEARTS
100345454(MM): CURTAIN_FALLS_ON_THE_MINSTREL_SHOW_OF_HATE
100410581(UA): NOW_LISTEN_CLOSELY_ILL_TELL_YOU_WHAT_I_KNOW
100412587(UR): THE_HARDER_I_WORK_THE_MORE_LUCK_I_HAVE
100437494(KM): NOR_THE_GARDENS_OF_BABYLON_ETERNAL_BEAUTY
100441778(EC): LONG_FOR_THE_ENDLESS_IMMENSITY_OF_THE_SEA
100447262(PD): COMPUTER_SCIENCE_IS_NO_MORE_ABOUT_COMPUTERS
100453499(HH): TRAVELING_THROUGH_CASUAL_SPACE_ALOOF_STARS
100464150(VZ): THESE_ARE_NOT_THE_ONLY_WONDERS_OF_THE_WORLD
100470622(JS): MANKIND_ARE_MORE_DISPOSED_TO_SUFFER_WHILE
100480365(AG): WE_HOLD_THESE_TRUTHS_TO_BE_SELF_EVIDENT
100512057(CV): WE_PEOPLE_ON_THIS_SMALL_AND_DRIFTING_PLANET
100513502(SK): SIMPLICITY_IS_A_VIRTUE_BUT_REQUIRES_HARD_WORK
100543094(NC): OUT_OF_SUCH_CHAOS_OF_SUCH_CONTRADICTION
100546558(BM): IT_IS_THE_SIMPLE_THAT_PRODUCES_THE_MARVELOUS
100558557(CP): WE_RELEASE_FINGERS_FROM_FISTS_OF_HOSTILITY
100561453(KC): CAREFUL_GIVING_ADVICE_IT_IS_SOMETIMES_FOLLOWED
100562549(GJ): A_CASE_AGAINST_THE_GOTO_STATEMENT_DIJKSTRA