C11111211113313112113313331333133313331333132322121111331322231321   >>    C1111121111331311211331333133313331333133313232212111133132223132   <<    C11111211113313112113313331333133313331333132322121111331322231323   >>      C11111211113313112113313331333133313331333132322121111331322231322   >>