# coding:UTF-8
            '''
            これは変数、変数型、変数の計算と出力の練習例題
            '''
            a = "Good"
            b = "Morning."
            c = "Afternoon."
            d = "Evening."
            print(a,b)
            print(a,c)
            print(a,d)
            
            x = 3.14
            r = 5
            print("円の面積＝",x*r*r)
            print("円の周長",x*2*r)
            
            print("変数型")
            print(type(a), type(b),type(c))
            print(type(x),type(r))