C221213331323133112111133133313331333131323223313231323223323221   >>    C22121333132313311211113313331333133313132322331323132322332322   <<    C221213331323133112111133133313331333131323223313231323223323223   >>      C221213331323133112111133133313331333131323223313231323223323222   >>