Practice: COVID
COOK89: FBMT, MINSUBAR, BTAR, ROTPTS
BITF2017: BLKWID
LTIME55: NW1, ABX01, ABX02, ABX03
JAN18: RECTANGL, MAXSC, KCON, STRMRG, PRTITION, KILLKTH, XYHUMOQ, MONSTER
LTIME57: HILLS, GAMENUMB, BORDER
MARCH18A: CUTTREE, PSHTRG, GCDCNT, MINVOTE, XXOR, MIXCOLOR, CHEFKNN
ALKH2018: HELPVOLD, HARRYWND, HARRYCOS, HEDWIG, HARRYGOF
COOK92A: CO92SUBW, CO92MATR, CO92REST
CMEL2018: CNDLOVE, SINS, XDS, CRISIS, LCSTSUB, ENIG10, YFG
ZCOPRAC: ZCO14003, ZCO14001, ZCO13001, ZCO13003, ZCO15002, ZCO12001, ZCO14002, ZCO14004, ZCO12004, ZCO15001, ZCO15003, ZCO12002, ZCO13002, ZCO12003, ZCO13004, ZCO15004, ZCO16002, ZCO16001
CHPTRS01: COVID, FUNRUN, MPRODMUL, ARTPNT, CSCARE, GAMENUM, WASHHAND, CODEKARO, CARLOT
CCOD2020: ECODOWN, PALL9, FILLBOX, NITGOC, MOTU001
COOK117A: MINOPS