C312322331333132212111133133313331323133313221211111333132222121121   >>    C31232233133313221211113313331333132313331322121111133313222212112   <<    C312322331333132212111133133313331323133313221211111333132222121123   >>      C312322331333132212111133133313331323133313221211111333132222121122   >>