C313212111113331323312111133133313331333132233133313133313113313231221   >>    C31321211111333132331211113313331333133313223313331313331311331323122   <<    C313212111113331323312111133133313331333132233133313133313113313231223   >>      C313212111113331323312111133133313331333132233133313133313113313231222   >>