C1111233131211111211113313331333133313232321333133313112121133321   >>    C111123313121111121111331333133313331323232133313331311212113332   <<    C1111233131211111211113313331333133313232321333133313112121133323   >>      C1111233131211111211113313331333133313232321333133313112121133322   >>