C11111211113313112113313331333133313331333132313331333133313332331321   >>    C1111121111331311211331333133313331333133313231333133313331333233132   <<    C11111211113313112113313331333133313331333132313331333133313332331323   >>      C11111211113313112113313331333133313331333132313331333133313332331322   >>