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echo "Index of the first city whose name is “Dar Es Salaam”: ",

Cities.findIt(it.name == "Dar Es Salaam")

let idx1 = Cities.findIt(it.population < 5)

echo "Name of the first city whose population is less than 5 million: ",

if idx1 == -1: "<none>" else: Cities[idx1].name

let idx2 = Cities.findIt(it.name.startsWith("A"))

echo "Population of the first city whose name starts with the letter “A”: ",