diff --git a/pair_sum.py b/pair_sum.py
index e69de29..6b82463 100644
--- a/pair_sum.py
+++ b/pair_sum.py
@@ -0,0 +1,8 @@
+def pairSum(list_1, no):
+    pairSum_list = []
+    for i in range(0, len(list_1)):
+        for j in range(i+1, len(list_1)):
+            if (list_1[i] + list_1[j] == no):
+                c = (list_1[i], list_1[j])
+                pairSum_list.append(c)
+    return pairSum_list
diff --git a/pair_sum.pyc b/pair_sum.pyc
new file mode 100644
index 0000000..91e1409
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diff --git a/tests/__init__.pyc b/tests/__init__.pyc
new file mode 100644
index 0000000..c553211
Binary files /dev/null and b/tests/__init__.pyc differ
diff --git a/tests/test_pairSum.pyc b/tests/test_pairSum.pyc
new file mode 100644
index 0000000..5789cbc
Binary files /dev/null and b/tests/test_pairSum.pyc differ