C11111211113313112113313331333133313231323223313331311211321131   >>    C1111121111331311211331333133313331323132322331333131121132113   <<    C11111211113313112113313331333133313231323223313331311211321133   >>      C11111211113313112113313331333133313231323223313331311211321132   >>