C1111121111331311211331333133313231333132212111113331333132313331322223212131   >>    C111112111133131121133133313331323133313221211111333133313231333132222321213   <<    C1111121111331311211331333133313231333132212111113331333132313331322223212133   >>      C1111121111331311211331333133313231333132212111113331333132313331322223212132   >>