C11111211113313112113313331333133313231121131211113313331333223313231323231   >>    C1111121111331311211331333133313331323112113121111331333133322331323132323   <<    C11111211113313112113313331333133313231121131211113313331333223313231323233   >>      C11111211113313112113313331333133313231121131211113313331333223313231323232   >>