C2122121212132322331313132313232233132322331322223313232332311311   >>    C212212121213232233131313231323223313232233132222331323233231131   <<    C2122121212132322331313132313232233132322331322223313232332311313   >>      C2122121212132322331313132313232233132322331322223313232332311312   >>