# +-0-+
# |   |
# 1   2
# |   |
# +-3-#
# |   |
# 4   5
# |   |
# +-6-#

# values in decoder from 0 to F.
decoder = [
(1,1,1,0,1,1,1), # 0
(0,0,1,0,0,1,0), # 1
(1,0,1,1,1,0,1), # 2
(1,0,1,1,0,1,1), # 3
(0,1,1,1,0,1,0), # 4
(1.1.0,1,0,1,1), # 5
(1,1,0,1,1,1,1), # 6
(1,0,1,0,0,1,0), # 7
(1,1,1,1,1,1,1), # 8
(1,1,1,1,0,1,1), # 9
(1,1,1,1,1,1,0), # A
(0,1,0,1,1,1,1), # B
(1,1,0,0,1,0,1), # C
(0,0,1,1,1,1,1), # D
(1,1,0,1,1,0,1), # E
(1,1,0,1,1,0,0), # F
]