|-
for(:x, range(5))
	|{x}

|-
for(:y, range(2, 7))
	|{y}

|-
for(:z, range(2, 7, 3))
	|{z}

|-
for(:x, range(4, 0, -1))
	|{x}

|-
for(:x, range(4, 8, -1))
	|{x}

|-
for(:x, range(8, 4))
	|{x}

|-
for(:x, range(4, 4))
	|{x}