C11111211113313112113313331333133313331333131211113313113313231333132233322321   >>    C1111121111331311211331333133313331333133313121111331311331323133313223332232   <<    C11111211113313112113313331333133313331333131211113313113313231333132233322323   >>      C11111211113313112113313331333133313331333131211113313113313231333132233322322   >>