C312312111111331312111133133313331322331333133313331322331323132313332221   >>    C31231211111133131211113313331333132233133313331333132233132313231333222   <<    C312312111111331312111133133313331322331333133313331322331323132313332223   >>      C312312111111331312111133133313331322331333133313331322331323132313332222   >>