C1111233131211111211113313331333133313232321333133313132321111321   >>    C111123313121111121111331333133313331323232133313331313232111132   <<    C1111233131211111211113313331333133313232321333133313132321111323   >>      C1111233131211111211113313331333133313232321333133313132321111322   >>