C2122121212121133132213231313231313231323223313231322331323222313231311311   >>    C212212121212113313221323131323131323132322331323132233132322231323131131   <<    C2122121212121133132213231313231313231323223313231322331323222313231311313   >>      C2122121212121133132213231313231313231323223313231322331323222313231311312   >>