существуют ли натуральные числа a,b,c такие, что (a+b)(b+c)(a+c)=2013, СПАСИБО

Running your own business can (1) ……………. (make / present / provide /
suggest) really high job satisfaction – the satisfaction of being in (2) ……………
(duty / charge / head / position) of your own life and making your own (3)
………….… (alterations / ideas / proposals / decisions) about how things should be
done.
If you are ambitious, you may want to achieve (4) ……………. (courage /
power / success / security) on a large scale and eventually become rich. Or it may be
(5) ………………. (many / enough / too / lot) for you simply to enjoy work more
and to achieve a modest increase (6) ……………. (at / on / in / for) living standards
at the same time.
It`s important to take into (7) ……………. (account / mind / thought /
contemplation) the less desirable aspects of the job as (8) ………………. (much /
also / too / well). For instant, if problems (9) …………….. (rise / raise / arise /
happen), it will be up to you to sort them (10) ……………… (up / in / through /
out). You`ll probably have to work harder and longer hours, especially in the
(11) ……………… (initiation /early / starting / beginning) stages. You`ll probably 50
see less of your family and friends too. And, of course, you won`t enjoy the security
of a (12) …………… (permanent / square / regular / usual) pay packet.
If you see all this as a challeng

ge (13) ………….. (rather / instead / otherwise /
other) than a disadvantage, you have at (14) ………………. (last / least / once /
most) one of the qualities needed for success. Other qualities (15) …………….
(compose / contain / consist / include): the ability to work on one`s own, a refusal to
(16) ………….. (give / work / turn / draw) up, and a willingness to take on
responsibility.

Большее число при делении на 20 дает в остатке 15,а меньшее-12. Чему будет равен остаток от деления на 20 суммы и разности этих чисел.