import random
coins = 0
while True:
print(f"coins: {coins}")
rnd1 = random.randrange(-10,10)
rnd2 = random.randrange(-10,10)
mode_list = ["+","-","*","/"]
mode = random.choice(mode_list)
equation=f"{rnd1}{mode}{rnd2}"
print(f"{equation}=x")
print("x=?")
#print(f"debug: {eval(equation)}")
x = float(input("ENTER: "))
if x==(eval(equation)):
coins+=1
else:
coins-=1