C1111121111331311211331333133313331333133313231123313331333132313231323231321   >>    C111112111133131121133133313331333133313331323112331333133313231323132323132   <<    C1111121111331311211331333133313331333133313231123313331333132313231323231323   >>      C1111121111331311211331333133313331333133313231123313331333132313231323231322   >>