Add student example inputs

examples/palindrome/palindrome.mc

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+
+int modulo(int n, int k) {
+	return (n - k * (n / k));
+}
+
+bool is_palindrome(int original) {
+	int reversed;
+	int remainder;
+	int to_check;
+
+	reversed = 0;
+	to_check = original;
+
+	while (to_check != 0) {
+		remainder = modulo(to_check, 10);
+		reversed = reversed * 10 + remainder;
+		to_check = to_check / 10;
+	}
+
+	if (original == reversed) {
+		return true;
+	} else {
+		return false;
+	}
+}
+
+int main() {
+	int input;
+
+	print("Please enter a number:");
+	input = read_int();
+	print_nl();
+
+	bool result = is_palindrome(input);
+
+	print_int(input);
+	if (result) {
+		print(" is a palindrome.");
+	} else {
+		print(" is not a palindrome.");
+	}
+	print_nl();
+
+	return 0;
+}

examples/palindrome/palindrome.stdin.txt

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+4321234

examples/palindrome/palindrome.stdout.txt

@@ -0,0 +1,2 @@
+Please enter a number:
+4321234 is a palindrome.