C1313122132333132313132313232321323132313132322331323331323123211   >>    C131312213233313231313231323232132313231313232233132333132312321   <<    C1313122132333132313132313232321323132313132322331323331323123213   >>      C1313122132333132313132313232321323132313132322331323331323123212   >>