C1111133313331323223313331333133313113313121111331323133211323131   >>    C111113331333132322331333133313331311331312111133132313321132313   <<    C1111133313331323223313331333133313113313121111331323133211323133   >>      C1111133313331323223313331333133313113313121111331323133211323132   >>