C2122121212121133132213231313231313231323223313231322331313231323233121   >>    C212212121212113313221323131323131323132322331323132233131323132323312   <<    C2122121212121133132213231313231313231323223313231322331313231323233123   >>      C2122121212121133132213231313231313231323223313231322331313231323233122   >>