# LINT: neither loop handles failure explicitly with "|| return 1"
for i in 0 1 2 3 4 5 6 7 8 9;
do
	for j in 0 1 2 3 4 5 6 7 8 9;
	do
		echo "$i$j" >"path$i$j"
	done
done &&

# LINT: inner loop handles failure explicitly with "|| return 1"
for i in 0 1 2 3 4 5 6 7 8 9;
do
	for j in 0 1 2 3 4 5 6 7 8 9;
	do
		echo "$i$j" >"path$i$j" || return 1
	done
done &&

# LINT: outer loop handles failure explicitly with "|| return 1"
for i in 0 1 2 3 4 5 6 7 8 9;
do
	for j in 0 1 2 3 4 5 6 7 8 9;
	do
		echo "$i$j" >"path$i$j"
	done || return 1
done &&

# LINT: inner & outer loops handles failure explicitly with "|| return 1"
for i in 0 1 2 3 4 5 6 7 8 9;
do
	for j in 0 1 2 3 4 5 6 7 8 9;
	do
		echo "$i$j" >"path$i$j" || return 1
	done || return 1
done
