C2122121212121133132213231313231313231323223313231322331323223312131   >>    C212212121212113313221323131323131323132322331323132233132322331213   <<    C2122121212121133132213231313231313231323223313231322331323223312133   >>      C2122121212121133132213231313231313231323223313231322331323223312132   >>