Practice: GRAPLANE, BUYING, CIELQUIZ, CIELBTL
COOK08: MONTRANS, SNAKY, GROUPING, PALIPALI
COOK09: MIME2, PRIMES2, COOKOFF2
COOK15: GENARSEQ, TRAVELER, PERMDIG, NONPALIN
COOK16: SUBANAGR, MVCOIN, COLCHAIN
COOK18: COLLIDE, KSUBSUM, TAKEAWAY, FALLDOWN
COOK30: CIELDIST, MANYCHEF, DEFACING