C22212323232133313113313331333133313231323132222123112322311321   >>    C2221232323213331311331333133313331323132313222212311232231132   <<    C22212323232133313113313331333133313231323132222123112322311323   >>      C22212323232133313113313331333133313231323132222123112322311322   >>