C11111211113313112113313331333133313331333132313331333133313331333131111122131   >>    C1111121111331311211331333133313331333133313231333133313331333133313111112213   <<    C11111211113313112113313331333133313331333132313331333133313331333131111122133   >>      C11111211113313112113313331333133313331333132313331333133313331333131111122132   >>