C1111233131211111211113313331333133313331333133313331333133313112112113211321   >>    C111123313121111121111331333133313331333133313331333133313331311211211321132   <<    C1111233131211111211113313331333133313331333133313331333133313112112113211323   >>      C1111233131211111211113313331333133313331333133313331333133313112112113211322   >>