C11111211113313112113313331333133313331322113312111133132321123131   >>    C1111121111331311211331333133313331333132211331211113313232112313   <<    C11111211113313112113313331333133313331322113312111133132321123133   >>      C11111211113313112113313331333133313331322113312111133132321123132   >>