C22212323232133313113313331333132313331323132313331132212112321   >>    C2221232323213331311331333133313231333132313231333113221211232   <<    C22212323232133313113313331333132313331323132313331132212112323   >>      C22212323232133313113313331333132313331323132313331132212112322   >>