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diff --git a/challenge-252/nelo-tovar/bash/ch-2.sh b/challenge-252/nelo-tovar/bash/ch-2.sh
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+#
+# The Weekly Challenge 252 - By Nelo Tovar
+#
+# https://theweeklychallenge.org/blog/perl-weekly-challenge-252/
+#
+# Task 2 : Unique Sum Zero
+
+function unique_sum_zero() {
+    local n=$1
+    local numbers=()
+
+    if [[ $(($n % 2)) -ne 0 || $n -eq 1 ]]; then
+        numbers=(0)
+    fi
+
+    for (( k = 1; k <= $(($n / 2)); k++ )); do
+        i=$(shuf -i 1-10 -n 1)
+        numbers+=($i -$i)
+    done
+
+    echo ${numbers[@]}
+}
+
+example1='5 3 1'
+
+for e in $example1; do
+    array=($e)
+    usz=$(unique_sum_zero $e)
+    echo "Input  : $s = $e"
+    echo "Output :" $(printf " %s, " ${usz[@]})
+    echo  " "
+done
+