create dev channel

zeta/py/completed/2097.py

@@ -0,0 +1,19 @@
+# * *    * * *
+# * * or * * *
+# * *    * * *
+if __name__ == "__main__":
+    N = int(input())
+
+    if N != 1:
+        sqn = 0
+        while sqn**2 < N:
+            sqn += 1
+
+        if (sqn - 1) * sqn > N:
+            a = (sqn - 2 + sqn - 1) * 2
+        else:
+            a = (sqn - 1) * 4
+    else:
+        a = 4
+
+    print(a)