C1111233131211111211113313331333133313231121133212331333133313221211211321   >>    C111123313121111121111331333133313331323112113321233133313331322121121132   <<    C1111233131211111211113313331333133313231121133212331333133313221211211323   >>      C1111233131211111211113313331333133313231121133212331333133313221211211322   >>