C11111211113313112113313331333133313331333132313331333133313321131311   >>    C1111121111331311211331333133313331333133313231333133313331332113131   <<    C11111211113313112113313331333133313331333132313331333133313321131313   >>      C11111211113313112113313331333133313331333132313331333133313321131312   >>