C31211133313113313132333132313311231323132322331323133312233231   >>    C3121113331311331313233313231331123132313232233132313331223323   <<    C31211133313113313132333132313311231323132322331323133312233233   >>      C31211133313113313132333132313311231323132322331323133312233232   >>