def get_result(nums, ops):
    while(ops != []):
        opn = -1
        n = 0
        while (n < len(ops)):
            if (opn == -1):
                    opn = n
            else:
                if (ops[opn] == '+' or ops[opn] == '-'):
                    if (ops[n] == '*' or ops[n] == '/'):
                        opn = n
                if (ops[opn] == '*' or ops[opn] == '/' or ops[opn] == '+' or ops[opn] == '-'):
                    if (ops[n] == '^'):
                        opn = n
            n+=1
        if (ops[opn] == '+'):
            nums.insert(opn, nums.pop(opn) + nums.pop(opn))
        elif (ops[opn] == '-'):
            nums.insert(opn, nums.pop(opn) - nums.pop(opn))
        elif (ops[opn] == '*'):
            nums.insert(opn, nums.pop(opn) * nums.pop(opn))
        elif (ops[opn] == '/'):
            nums.insert(opn, nums.pop(opn) / nums.pop(opn))
        elif (ops[opn] == '^'):
            nums.insert(opn, nums.pop(opn) ** nums.pop(opn))
        ops.pop(opn)
    return nums[0]

def calc(nums, ops):
    mod_ops = []
    brackets = []
    
    for i in range(len(ops)):
        if (ops[i] != '(' and ops[i] != ')'):
            mod_ops += ops[i]
        else:
            if ops[i] != ')':
                temp = "open"
            else:
                temp = "close"
            brackets.append([len(mod_ops), temp])

    while (len(brackets)>0):
        index = -1
        for i in range(len(brackets)):
            if (brackets[i][1] == "open"):
                index = i
        if (index != -1):
            ob = brackets.pop(index)
            cb = brackets.pop(index)
            new_ops = mod_ops[ob[0]:cb[0]]
            mod_ops[ob[0]:cb[0]] = []
            new_nums = nums[ob[0]:cb[0]+1]
            nums[ob[0]:cb[0]+1] = [get_result(new_nums, new_ops)]
        else:
            break
    return get_result(nums, mod_ops)