C2122121212121133132213231313231313231323223313231322331313233313231323221321   >>    C212212121212113313221323131323131323132322331323132233131323331323132322132   <<    C2122121212121133132213231313231313231323223313231322331313233313231323221323   >>      C2122121212121133132213231313231313231323223313231322331313233313231323221322   >>