import random

cnt = 11
# 乘法
for i in range(1, cnt):
    a = random.randint(100, 999)
    b = random.randint(10, 99)
    print(str(a) + "×" + str(b) + "=", end="                    ")
    if i % 2 == 0:
        print("")
        print("")
        print("")
        print("")
# 除法
for i in range(1, cnt):
    a = random.randint(100, 999)
    b = random.randint(10, 99)
    print(str(a) + "÷" + str(b) + "=", end="                    ")
    if i % 2 == 0:
        print("")
        print("")
        print("")
        print("")


# 获取一个可以整除的三位数除两位数
def getDivStr():
    while True:
        a = random.randint(10, 99)
        b = random.randint(10, 40)  # 倍数
        if a * b >= 1000:
            continue
        return str(a * b) + "÷" + str(a)


# 获取形如 (230-182÷14) × 21
def getSiZe1():
    while True:
        a = random.randint(100, 999)
        b = random.randint(10, 99)
        s = "(" + str(a) + "-" + getDivStr() + ")×" + str(b)
        s1 = s.replace("÷", "/").replace("×", "*")
        x = eval(s1)
        if x < 0:
            continue
        return s


for i in range(1, cnt):
    print(getSiZe1(), end="              ")
    if i % 2 == 0:
        print("")
        print("")
        print("")
        print("")


# 获取形如 [(256+88×3)] ÷ 43
def getSiZe2():
    while True:
        a = random.randint(10, 99)

        x = random.randint(100, 999)
        y = random.randint(10, 99)
        z = random.randint(2, 9)

        s = "[(" + str(x) + "+" + str(y) + "×" + str(z) + ")]"
        s1 = s.replace("÷", "/").replace("×", "*")
        x = eval(s1)
        if (x[0] % a) > 0:
            continue
        return s+'÷'+str(a)
for i in range(1, cnt):
    s=getSiZe2()
    print(s, end="              ")
    if i % 2 == 0:
        print("")
        print("")
        print("")
        print("")