C111113331333132322331333133313331333132313331333133311212113313131121   >>    C11111333133313232233133313331333133313231333133313331121211331313112   <<    C111113331333132322331333133313331333132313331333133311212113313131123   >>      C111113331333132322331333133313331333132313331333133311212113313131122   >>