ut??m&da?oc?se??n&gd?if?o&m?rga???o&csid?fni?i&r?u??rp??pprr?qisp?r&ab?bi?tn?ut??t&al?e&n?v??n&ed?o&c?do???of?qra?ra??ude?vog?xxx??beuq?n?smoc??fdh?i&lohtac?n&agro?ilc?osanap??sum?tic??l!.&gro?moc?oc?ten?ude?vog?yo,?l??m!.&mt?ossa??p1akcq--nx??n!.&mon?ossa??i?p??relcel?s!.&gro?moc?ten?ude?vog???t!s?w??v!.&gro?lim?moc?sndym,ten?ude?v&g:.d,,og????wp?yn??d&2urzc--nx?3&1wrpk--nx?c&4b11--nx?9jrcpf--nx???5xq55--nx?697uto--nx?75yrpk--nx?9ctdvkce--nx?a!d?er?olnwod??b!.&ca?di?gro?hcs?ia?lim?moc?o&c?fni??...

for i, s := range a {
	// type of i is int
	// type of s is string
	// s == a[i]
	g(i, s)
}

var key string
var val interface{}  // element type of m is assignable to val
m := map[string]int{"mon":0, "tue":1, "wed":2, "thu":3, "fri":4, "sat":5, "sun":6}
for key, val = range m {
	h(key, val)
}
// key == last map key encountered in iteration
// val == map[key]

var ch chan Work = producer()