C312322331333132212111133133313331323133313221211113313233231231   >>    C31232233133313221211113313331333132313331322121111331323323123   <<    C312322331333132212111133133313331323133313221211113313233231233   >>      C312322331333132212111133133313331323133313221211113313233231232   >>