C1111233131211111211113313331333133313232321333131333131133132311211131   >>    C111123313121111121111331333133313331323232133313133313113313231121113   <<    C1111233131211111211113313331333133313232321333131333131133132311211133   >>      C1111233131211111211113313331333133313232321333131333131133132311211132   >>