C11112331312111112111133133313331333132212111133133313331323133313231322231321   >>    C1111233131211111211113313331333133313221211113313331333132313331323132223132   <<    C11112331312111112111133133313331333132212111133133313331323133313231322231323   >>      C11112331312111112111133133313331333132212111133133313331323133313231322231322   >>