C313212111113331323312111133133313331333133313331333133313231323132322221   >>    C31321211111333132331211113313331333133313331333133313331323132313232222   <<    C313212111113331323312111133133313331333133313331333133313231323132322223   >>      C313212111113331323312111133133313331333133313331333133313231323132322222   >>