C11111211113313112113313331333133313331333132313331333133313221211111322123231   >>    C1111121111331311211331333133313331333133313231333133313331322121111132212323   <<    C11111211113313112113313331333133313331333132313331333133313221211111322123233   >>      C11111211113313112113313331333133313331333132313331333133313221211111322123232   >>