C11111211113313112113313331333133313331312322121111133313221132321   >>    C1111121111331311211331333133313331333131232212111113331322113232   <<    C11111211113313112113313331333133313331312322121111133313221132323   >>      C11111211113313112113313331333133313331312322121111133313221132322   >>