# your code goes here
crave=['word1','word2','word3','word4','word5','word6','word7']
ITEM = [crave[i:i+3] for i in xrange(0, len(crave), 3)]
print ITEM
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCmNyYXZlPVsnd29yZDEnLCd3b3JkMicsJ3dvcmQzJywnd29yZDQnLCd3b3JkNScsJ3dvcmQ2Jywnd29yZDcnXQoKSVRFTSA9IFtjcmF2ZVtpOmkrM10gZm9yIGkgaW4geHJhbmdlKDAsIGxlbihjcmF2ZSksIDMpXQoKcHJpbnQgSVRFTQ==