versioninfo()

function zundokochannel()
    Channel{String}(32) do channel
        i = 1
        while i > 0
            zd, i = rand([("ズン", i + 1), ("ドコ", +(i<5))])
            put!(channel, zd)
        end
        put!(channel, "キ・ヨ・シ！")
    end
end

for cw in zundokochannel()
    print(cw)
end

collect(zundokochannel())

function zundokostrictchannel()
    Channel{String}(32) do channel
        i = 1
        while i > 0
            zd, i = rand([("ズン", i + 1), ("ドコ", +(i!=5))])
            put!(channel, zd)
        end
        put!(channel, "キ・ヨ・シ！")
    end
end

for cw in zundokostrictchannel()
    print(cw)
end

collect(zundokostrictchannel())