C111112111133131121133133313331333132313232233132313331323133311211323213221   >>    C11111211113313112113313331333133313231323223313231333132313331121132321322   <<    C111112111133131121133133313331333132313232233132313331323133311211323213223   >>      C111112111133131121133133313331333132313232233132313331323133311211323213222   >>