C1111233131211111211113313331333133313331333133313331333133313112223331321   >>    C111123313121111121111331333133313331333133313331333133313331311222333132   <<    C1111233131211111211113313331333133313331333133313331333133313112223331323   >>      C1111233131211111211113313331333133313331333133313331333133313112223331322   >>