Practice: TWTCLOSE, COINS, MARBLES, REVENG01, WW2, KOL15C, KOL15A, KOL15B, XORGRID, CHXORR, TREEUNAT, TWOVSTEN, EID, BFTT
OCT18B: CHSERVE, BITOBYT, HMAPPY, MINDSUM, CCIRCLES, SURCHESS, BBRICKS
NOV18B: CHFTIRED, CHHAPPY, PRDRG, HMAPPY1, GMEDIAN, MAGICHF2, PRITREE
COOK100A: BEAUTGAR