C11111211113313112113313331333133313331333132322121111331323111221   >>    C1111121111331311211331333133313331333133313232212111133132311122   <<    C11111211113313112113313331333133313331333132322121111331323111223   >>      C11111211113313112113313331333133313331333132322121111331323111222   >>