diff --git a/basic/1_variable.py b/basic/1_variable.py
index d15e504..6faffa9 100644
--- a/basic/1_variable.py
+++ b/basic/1_variable.py
@@ -1,3 +1,5 @@
+# -*- coding: utf-8 -*-
+
 '''
 문단주석
 '''
@@ -13,7 +15,7 @@
 print(type(stock_earning))
 
 # str 은 문자
-stock_name = "문자입니다."
+stock_name = "aaa"
 print("stock_name : %s" % stock_name)
 print(type(stock_name))
 
diff --git a/basic/2_math.py b/basic/2_math.py
index bb6f4b3..3aec166 100644
--- a/basic/2_math.py
+++ b/basic/2_math.py
@@ -1,11 +1,14 @@
+# -*- coding: utf-8 -*-
+
 '''
 덧셈, 뺄셈, 곱셈, 나눗셈
 '''
 
-#int 더하기
+#기본 값 세팅
 stock_price1 = 1000
 stock_price2 = 2000
 
+#int 더하기
 stock_price_total = stock_price1 + stock_price2
 print("%s" % stock_price_total)
 
diff --git a/basic/3_0_conditional_statements.py b/basic/3_0_conditional_statements.py
new file mode 100644
index 0000000..2f4823c
--- /dev/null
+++ b/basic/3_0_conditional_statements.py
@@ -0,0 +1,7 @@
+cnt=0
+
+if cnt == 30:
+    print("number 1")
+
+print("number 2")
+      
\ No newline at end of file
diff --git a/basic/3_1_conditional_statements for.py b/basic/3_1_conditional_statements for.py
new file mode 100644
index 0000000..d52fa58
--- /dev/null
+++ b/basic/3_1_conditional_statements for.py	
@@ -0,0 +1,8 @@
+count = 0
+for i in range(0, 10):
+    count = count + 1
+
+print(count)
+
+for i, value in enumerate(['kium', 'samsung', 'kakao']):
+    print("%s is numeric, %s is value" % (i,value))
\ No newline at end of file
diff --git a/basic/3_2_conditional_statements_while.py b/basic/3_2_conditional_statements_while.py
new file mode 100644
index 0000000..981f3f3
--- /dev/null
+++ b/basic/3_2_conditional_statements_while.py
@@ -0,0 +1,9 @@
+
+cnt = 0
+repeat_boolean = True
+while repeat_boolean:
+    print("%s while statement is running" % cnt)
+    cnt = cnt+1
+    if cnt == 30:
+        repeat_boolean = False
+        print("the end")
diff --git a/basic/4_1_tuple.py b/basic/4_1_tuple.py
new file mode 100644
index 0000000..a3142b9
--- /dev/null
+++ b/basic/4_1_tuple.py
@@ -0,0 +1,18 @@
+
+# like a javascript array
+# tuple is not able to add or update
+a_tuple = {"kiumn","daesin", "kakao"}
+print(a_tuple)
+
+a_len = len(a_tuple)
+print(a_len)
+
+a_type = type(a_tuple)
+print(a_type)
+
+for value in a_tuple:
+    print(value)
+
+for index, value in enumerate(a_tuple):
+    print("%s is index, %s is value" % (index, value))
+
diff --git a/basic/4_2_list.py b/basic/4_2_list.py
new file mode 100644
index 0000000..0684c1d
--- /dev/null
+++ b/basic/4_2_list.py
@@ -0,0 +1,14 @@
+a_list = ["list1", "list2", "list3"]
+
+print(a_list)
+
+for index,value in enumerate(a_list):
+    print("%s, %s" %(index,value))
+
+
+a_list = ["a_list1", "a_list2", "a_list3"]
+b_list = ["b_list1", "b_list2"]
+
+a_list.append(b_list)
+
+print(a_list)
\ No newline at end of file
diff --git a/basic/4_3_dictionary.py b/basic/4_3_dictionary.py
new file mode 100644
index 0000000..974a392
--- /dev/null
+++ b/basic/4_3_dictionary.py
@@ -0,0 +1,36 @@
+# like a map of JAVA
+a_dict = {"key 1" : "value 1"
+         ,"key 2" : "value 2"
+         ,"key 3" : "value 3"}
+
+print(type(a_dict))
+print(a_dict)
+print(a_dict['key 1'])
+
+for key in a_dict:
+    print('%s is key. %s is value.' % (key, a_dict[key]))
+
+a_dict.update({"key 4" : "value 4", "key 5" : "value 5"})
+print(a_dict)
+
+for value in a_dict.keys():
+    print("value : %s" % value)
+    if value == "key 1":
+        print("222222222222222222222")
+    elif value == "key 2":
+        print("33333333333333333333")
+    else:
+        print("44444444444444444444")
+
+
+#like a map inner map of JAVA
+b_dict = {"bkey 1" : 
+            {"bkey 11" : "bvalue11"
+            ,"bkey 12" : "bvalue122"
+            }
+         }
+
+print(b_dict)
+print(b_dict['bkey 1']['bkey 12'])
+
+