label = input()
rank = int(input())


if label == 'a' or label == 'c' or label == 'e' or label == 'g':
    if rank % 2 == 0:
        print('light')
    else:
          print('dark')

else:
     label == 'b' or label == 'd' or label == 'f' or label == 'h'
     if rank % 2 == 0:
        print('dark')
     else:
          print('light')