diff --git a/vending.py b/vending.py
new file mode 100644
index 0000000..37b1742
--- /dev/null
+++ b/vending.py
@@ -0,0 +1,123 @@
+import math
+
+def int_check(i):
+    try:
+        return(int(i))
+    except ValueError:
+        return int_check(input("문자열이 입력됐습니다! 다시 입력해주세요 > "))
+
+# 주문 함수
+def order_drink():
+    global menu
+
+    print("음료를 선택 해주세요!\n[1] 차가운 음료\n[2] 따뜻한 음료")
+    menu_type = int_check(input("사용자 입력 > "))
+    print("-------------------------------")
+    if menu_type == 1:
+        print("[차가운 음료]")
+        menu = menu["차가운 음료"]
+    elif menu_type == 2:
+        print("[따듯한 음료]")
+        menu = menu["따듯한 음료"]
+    else:
+        print("잘못된 입력입니다!!")
+        return order_drink()
+    
+    selected_drink, selected_price = select_menu()
+
+    return selected_drink, selected_price
+
+# 메뉴 보여주기 및 선택 함수
+def select_menu():
+    num_item = 0
+    for i, (drink, price) in enumerate(menu.items(), start=1):
+        print(f"[{i}] {drink} : {price}원")
+        num_item += 1
+
+    user_choice = int_check(input("사용자 입력 > "))
+
+    if (user_choice >= 1 and user_choice <= num_item) == False:
+        print("-------------------------------\n 잘못된 입력입니다. 다시 입력해주세요!")
+        return select_menu()
+    
+    selected_drink = list(menu.keys())[user_choice - 1]
+    selected_price = menu[selected_drink]
+    
+    return selected_drink, selected_price
+
+# 결제 방식 선택 
+def payment_task(selected_drink, selected_price):
+    print("[결제 방식 선택]")
+    print("[1] 현금\n[2] 카드 (부가세 10% 적용)")
+    payment_method = int_check(input("사용자 입력 > "))
+    if payment_method == 1 :
+        cash_pay(selected_drink, selected_price)
+    elif payment_method == 2 :
+        selected_price += selected_price / 10
+        print(f"-------------------------------\ns이용해주셔서 감사합니다. \n\n[주문 음료]\n{selected_drink}\n\n[결제 금액]\n{math.trunc(selected_price)}원")
+    else : 
+        print("지원하는 결제 방식이 아닙니다! 다시 입력해주세요!")
+        return payment_task(selected_drink, selected_price)
+
+# 현금 결제 
+def cash_pay(selected_drink, selected_price) :
+    total_cash = 0
+    while total_cash <= selected_price:
+        print("-------------------------------")
+        print(f"[현금 투입 : {total_cash}원]")
+        print("[1] 5만원권\n[2] 1만원권\n[3] 5천원권\n[4] 1천원권\n[5] 500원\n[6] 100원\n[0] 반환")
+        cash_input = int_check(input("사용자 입력 > "))
+
+        if cash_input == 0:
+           total_cash = 0
+        elif cash_input >= 1 and cash_input <= 6:
+            print("")
+        else : 
+            continue
+
+        cash_values = [50000, 10000, 5000, 1000, 500, 100, 0]
+        total_cash += cash_values[cash_input - 1]
+
+    print("-------------------------------\n이용해주셔서 감사합니다.\n")
+    print(f"[주문 음료] \n{selected_drink}\n")
+    print(f"[투입 금액] \n{total_cash}원\n")
+
+    change = total_cash - selected_price
+    print("[잔돈]")
+    change_units = [50000, 10000, 5000, 1000, 500, 100]
+    for unit in change_units:
+        count = change // unit
+        change %= unit
+        if count > 0:
+            print(f"{unit}원권 : {count}개")
+
+# 매니저 부분
+def manager_task():
+    print("-------------------------------\n[관리자 설정]\n추가하실 메뉴를 입력해주세요!")
+
+def main():
+    global menu
+    menu = {"차가운 음료" : {"코카콜라" : 1500, "스프라이트" : 1300, "솔의눈" : 1000, "제로콜라" : 1600}, "따듯한 음료" : {"코코아" : 700, "커피" : 1000}}
+
+    # 시작
+    input("[어서와요! GDSC 음료 자판기]\n 계속 하려면 아무키나 입력하세요 ...")
+    print("-------------------------------\n[사용자 선택]\n[1] 사용자\n[2] 관리자\n[3] 종료")
+    Task_menu = int_check(input("사용자 입력 > "))
+    print("-------------------------------")
+    if Task_menu == 1 :
+        print("[사용자]")
+    elif Task_menu == 2:
+         print("[관리자]")
+         manager_task()
+    else : 
+        print("잘못 입력하셨습니다!")
+        return 0
+        
+    selected_drink, selected_price = order_drink()
+
+    print(f"-------------------------------\n[주문 음료] {selected_drink}\n")
+
+    payment_task(selected_drink, selected_price)
+
+if __name__ == "__main__":
+    main()