C11111211113313112113313331333132313331322121111133313331322221231   >>    C1111121111331311211331333133313231333132212111113331333132222123   <<    C11111211113313112113313331333132313331322121111133313331322221233   >>      C11111211113313112113313331333132313331322121111133313331322221232   >>