C131312213233313231313231323232132313231313232233132333132322331313212321   >>    C13131221323331323131323132323213231323131323223313233313232233131321232   <<    C131312213233313231313231323232132313231313232233132333132322331313212323   >>      C131312213233313231313231323232132313231313232233132333132322331313212322   >>