C31211133313132313231323331313132313231313232233132333132333132322331311311231   >>    C3121113331313231323132333131313231323131323223313233313233313232233131131123   <<    C31211133313132313231323331313132313231313232233132333132333132322331311311233   >>      C31211133313132313231323331313132313231313232233132333132333132322331311311232   >>