C31232233133313221211113313331333131211113313231333133321333231   >>    C3123223313331322121111331333133313121111331323133313332133323   <<    C31232233133313221211113313331333131211113313231333133321333233   >>      C31232233133313221211113313331333131211113313231333133321333232   >>