C312312111111331312111133133313231333133313112331323223313233111   >>    C31231211111133131211113313331323133313331311233132322331323311   <<    C312312111111331312111133133313231333133313112331323223313233113   >>      C312312111111331312111133133313231333133313112331323223313233112   >>