# coding: utf-8
        import random
        import os 
        
        os.system('clear')
        print('\n   数あて(1--99) \n')
        print('===============================\n')
        
        x = random.randint(1,99)
        count = 1
        y = int(input('数字入れて： ')) 
        
        while y > 0 and y < 100:
            if y == x: 
                rate = 1.0 / count
                ans = "You WIN! {}回であたった。勝率は{:.2f}。\n"
                print(ans.format(count, rate))
                break
            elif y < x:
                print('You are smaller than me!\n') 
                count += 1
            else:
                print('You are larger than me!\n')
                count += 1
            y = int(input('数字入れて： '))
        if y < 0 or y > 100:
              raise Exception("\n入力ミス. 1--99の数字を入れること.\n")