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import time

print('橙子计算器 copyright by OrangeSoft ')
time.sleep(1)
print('输入help以查看帮助')
while True:
    x1 = 0
    x2 = 0
    a = input()
    if a == 'help':
        print('输入1是加法，2是减法，3是乘法，4是除法，5是带余数的除法')
    elif a == '1':
        print('输入加数')
        x1 = int(input())
        print('请输入下一个加数')
        x2 = int(input())
        print('结果是', (x1 + x2))
    elif a == '2':
        print('请输入被减数')
        x1 = int(input())
        print('请输入减数')
        x2 = int(input())
        print('结果是', (x1 - x2))
    elif a == '3':
        print('请输入乘数')
        x1 = int(input())
        print('请输入下一个乘数')
        x2 = int(input())
        print('结果是', (x1 * x2))
    elif a == '4':
        print('请输入被除数')
        x1 = int(input())
        print('请输入除数')
        x2 = int(input())
        print('结果是', (x1 / x2))
    elif a == '5':
        print('请输入被除数')
        x1 = int(input())
        print('请输入除数')
        x2 = int(input())
        print('结果是', (x1 // x2), '余下', (x1 % x2))
    elif (a == 'stop'):
        print('已停止运行')
        break
    else:
        print('"', a, '"', '不是操控此程序的命令')