C1313122132333132313132313232321323132313132322331323331313221121   >>    C131312213233313231313231323232132313231313232233132333131322112   <<    C1313122132333132313132313232321323132313132322331323331313221123   >>      C1313122132333132313132313232321323132313132322331323331313221122   >>