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# Licensed under the Apache License, Version 2.0 (the "License");
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#     http://www.apache.org/licenses/LICENSE-2.0
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var c1 = [1..4]

# Simple comprehension
var a1 = [for i in c1 do i*2]
print a1.join(",")

# Cartesian product
var a2 = [for i in c1 do for j in c1 do i * 10 + j]
print a2.join(",")

# Cartesian product and filters
var a3 = [for i in c1 do if i.is_odd then for j in c1 do if j.is_even then i * 10 + j]
print a3.join(",")

# Nesting (useless)
var a4 = [for i in [for i in c1 do i*2] do i + 1]
print a4.join(",")

# Multi-dimensional
var a5 = [for i in c1 do [for j in c1 do i*10+j]]
print([for i in a5 do i.join(",")].join(";"))

# Multi-iteration (zip)
var a6 = [for i in c1, j in c1.reverse_iterator do i * 10 + j]
print a6.join(",")