C2122121212121133132213231313231313231323223313231322331333312331   >>    C212212121212113313221323131323131323132322331323132233133331233   <<    C2122121212121133132213231313231313231323223313231322331333312333   >>      C2122121212121133132213231313231313231323223313231322331333312332   >>