diff --git a/README.md b/README.md
index 4fed924..ed8a00c 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,8 @@
-# Git Lab 1
+# Nadula Gardiyehewa
+
+## **RESOURCES**
+
+- https://www.markdownguide.org/hacks/
+- https://www.markdownguide.org/basic-syntax/
+- https://www.geeksforgeeks.org/command-line-arguments-in-python/
+- https://webaim.org/resources/contrastchecker/
\ No newline at end of file
diff --git a/gitignore b/gitignore
new file mode 100644
index 0000000..e69de29
diff --git a/problem1.py b/problem1.py
new file mode 100644
index 0000000..61e2d07
--- /dev/null
+++ b/problem1.py
@@ -0,0 +1,46 @@
+import sys
+
+userInput = sys.argv[1:][0]
+
+# INITIAL INPUT VALIDATION
+
+if userInput[0] != '$':
+ print('[ERROR] Amount should start with dollar sign ($).')
+ sys.exit()
+
+# SEPARATE DOLLARS AND CENTS
+amount = userInput[1:]
+dollars = amount.split('.')[0]
+cents = amount.split('.')[1]
+
+if len(dollars) == 0:
+ print('[ERROR] Dollars should have at least one digit.')
+ sys.exit()
+
+if len(cents) != 2:
+ print('[ERROR] Cents should have 2 digits.')
+ sys.exit()
+
+# PRINT THE RESULT
+print(f'{dollars} dollars')
+
+coins = ['quarter', 'dime', 'nickel', 'penny']
+coins_plural = ['quarters', 'dimes', 'nickels', 'pennies']
+
+cents = int(cents)
+
+for i in range(4):
+ coinValue = 0
+ if i == 0:
+ coinValue = 25
+ elif i == 1:
+ coinValue = 10
+ elif i == 2:
+ coinValue = 5
+ else:
+ coinValue = 1
+
+ coinCount = cents // coinValue
+ cents = cents % coinValue
+ if coinCount > 0:
+ print(f'{coinCount} {coins[i] if coinCount == 1 else coins_plural[i]}')
diff --git a/problem2.js b/problem2.js
new file mode 100644
index 0000000..35ad8ce
--- /dev/null
+++ b/problem2.js
@@ -0,0 +1,31 @@
+const userInput = process.argv.slice(2);
+
+// INITIAL INPUT VALIDATION
+if (userInput.length === 0) {
+ console.log("[ERROR] No input provided.");
+ process.exit();
+}
+
+// SANITIZE USER INPUT
+let userInputSanitized = userInput
+ .join(" ")
+ .trim()
+ .replace(/\"/g, "")
+ .split(" ");
+
+let userInputLower = userInputSanitized.map((word) => word.toLowerCase());
+
+// FIND DUPLICATE WORDS
+let words = new Map();
+
+for (let word of userInputSanitized) {
+ if (
+ userInputLower.filter((w) => w === word.toLowerCase()).length > 1 &&
+ !words.has(word.toLowerCase())
+ ) {
+ words.set(word.toLowerCase(), word);
+ }
+}
+
+// PRINT THE RESULT
+words.forEach((word) => console.log(word));
diff --git a/problem3.css b/problem3.css
new file mode 100644
index 0000000..adfbdb2
--- /dev/null
+++ b/problem3.css
@@ -0,0 +1,21 @@
+body,
+html {
+ height: 100%;
+ margin: 0;
+ display: flex;
+ justify-content: center;
+ align-items: center;
+ background-color: #346094;
+ font-weight: 900;
+ font-size: 1.5rem;
+}
+
+form {
+ width: 80vw;
+ height: 70vh;
+ display: flex;
+ flex-direction: column;
+ justify-content: center;
+ align-items: center;
+ background-color: #8a8a8d;
+}
diff --git a/problem3.html b/problem3.html
new file mode 100644
index 0000000..71d7654
--- /dev/null
+++ b/problem3.html
@@ -0,0 +1,26 @@
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