C131312213233313231313231323232132313231323232131323132313232321   >>    C13131221323331323131323132323213231323132323213132313231323232   <<    C131312213233313231313231323232132313231323232131323132313232323   >>      C131312213233313231313231323232132313231323232131323132313232322   >>