import random
pocet = 0
    for i in range(100):
        num1 = random.randrange(99)
        num2 = random.randrange(99)

        if random.randrange(2) == 1:
            sign = "-"
        else:
            sign = "+"

        if sign == "+":
            if (num1 + num2) < 100:
                i += 1
                print(num1, "+", num2, "=")
            else:
                continue
        if sign == "-":
            if (num1 - num2) < 100:
                i += 1
                print(num1, "-", num2, "=")
            else:
                continue

subor = open("subor.txt", 'w')
for riadok in subor:
    subor.writeline(priklady())