C11111211113313112113313331333133313331312322121111133313332212233221   >>    C1111121111331311211331333133313331333131232212111113331333221223322   <<    C11111211113313112113313331333133313331312322121111133313332212233223   >>      C11111211113313112113313331333133313331312322121111133313332212233222   >>