C131312213233313231313231323232132313231323211331323132321123232231   >>    C13131221323331323131323132323213231323132321133132313232112323223   <<    C131312213233313231313231323232132313231323211331323132321123232233   >>      C131312213233313231313231323232132313231323211331323132321123232232   >>