Practice: CIELAB, HS08TEST, COCR105, GEEK04
JUNE20B: EVENM, XYSTR, CHFICRM, PRICECON, EOEO, TTUPLE, COVDSMPL, CONTAIN, GUESSG
CROS2020: COCR104
JULY20B: CHEFSTR1, CRDGAME, ADAKING, PTMSSNG, DRCHEF, CHFNSWPS, LCMCONST, DRGNDEN
SEPT20A: ADAMAT, CHFNSWAP, CRDGAME2, FINXOR
SNCKQL21: LUCKYNUM