diff --git a/SixteenthWave/detectFloating.py b/SixteenthWave/detectFloating.py
new file mode 100644
index 0000000..d4fbb88
--- /dev/null
+++ b/SixteenthWave/detectFloating.py
@@ -0,0 +1,15 @@
+# Enter your code here. Read input from STDIN. Print output to STDOUT
+import re
+
+
+class Main():
+    def __init__(self):
+        self.n = int(input())
+
+        for i in range(self.n):
+            self.s = input()
+            print(bool(re.match(r'^[-+]?[0-9]*\.[0-9]+$', self.s)))
+
+
+if __name__ == '__main__':
+    obj = Main()
diff --git a/SixteenthWave/groups.py b/SixteenthWave/groups.py
new file mode 100644
index 0000000..bfc8d93
--- /dev/null
+++ b/SixteenthWave/groups.py
@@ -0,0 +1,5 @@
+# Enter your code here. Read input from STDIN. Print output to STDOUT
+import re
+
+m = re.search(r'([a-zA-Z0-9])\1+', input().strip())
+print(m.group(1) if m else -1)
diff --git a/SixteenthWave/mapLambda.py b/SixteenthWave/mapLambda.py
new file mode 100644
index 0000000..92c839a
--- /dev/null
+++ b/SixteenthWave/mapLambda.py
@@ -0,0 +1,14 @@
+cube = lambda x: x ** 3
+
+
+def fibonacci(n):
+    List = [0, 1]
+    for i in range(2, n):
+        List.append(List[i - 1] + List[i - 2])
+
+    return (List[0:n])
+
+
+if __name__ == '__main__':
+    n = int(input())
+    print(list(map(cube, fibonacci(n))))
diff --git a/SixteenthWave/reSplit.py b/SixteenthWave/reSplit.py
new file mode 100644
index 0000000..13e79cc
--- /dev/null
+++ b/SixteenthWave/reSplit.py
@@ -0,0 +1,5 @@
+regex_pattern = r'[.,]+'
+
+import re
+
+print("\n".join(re.split(regex_pattern, input())))
diff --git a/SixteenthWave/validateEmailfilter.py b/SixteenthWave/validateEmailfilter.py
new file mode 100644
index 0000000..af5f4ad
--- /dev/null
+++ b/SixteenthWave/validateEmailfilter.py
@@ -0,0 +1,30 @@
+def fun(email):
+    try:
+        username, url = email.split('@')
+        website, extension = url.split('.')
+    except ValueError:
+        return False
+
+    if username.replace('-', '').replace('_', '').isalnum() is False:
+        return False
+    elif website.isalnum() is False:
+        return False
+    elif len(extension) > 3:
+        return False
+    else:
+        return True
+
+
+def filter_mail(emails):
+    return list(filter(fun, emails))
+
+
+if __name__ == '__main__':
+    n = int(input())
+    emails = []
+    for _ in range(n):
+        emails.append(input())
+
+filtered_emails = filter_mail(emails)
+filtered_emails.sort()
+print(filtered_emails)