C13131221323331323131323132323213231323132321133132313232113313231323132322111   >>    C1313122132333132313132313232321323132313232113313231323211331323132313232211   <<    C13131221323331323131323132323213231323132321133132313232113313231323132322113   >>      C13131221323331323131323132323213231323132321133132313232113313231323132322112   >>