How to take into account the totality of the sums of all elements of the list?

Question

Python

There is a set of variables ae. Provided that the sum of any two elements from the list is less than the specified value, the operation is performed. How to write a check for these sums without resorting to a boring type enumeration:

if a + b < x or \
    a + c < x or \:
    print('...')

Answer 1

Are you out of your mind, are you? The whole test is something - choose the two largest variables, add and compare.
What's up?..

Answer 2

from itertools import combinations

values_list = [1, 2, 3]
x = 4

if any(map(lambda v: v < x, map(sum, combinations(values_list, 2)))):
    print('...')

Answer 3

a = 1
b = 5
c = 9
x = 15
mxmGR = 0
mxmJR = 0
lst = [a, b, c]
mxm = max(lst)
mxmQnt = lst.count(mxm)

for i in lst:
    if mxmQnt >= 2:
        mxmGR, mxmJR = mxm, mxm
    else:
        mxmGR = mxm
        if mxmJR < i < mxmGR:
            mxmJR = i

if mxmGR + mxmJR < x:
    print('...')