If ABCD is a four digit number and ABCD + A + 2B + 3C + 4D = 2011, what is ABCD?

If ABCD is a four digit number and ABCD + A + 2B + 3C + 4D = 2011, what is ABCD?

First of all, judge that a is equal to 2 or 1, obviously when a = 2, B = 0, C < = 1, there is no solution, so a = 1, B = 9, 10C + D + 3C + 4D = 111-1-18 = 92, 13C + 5D = 92, the digit of 5D is 0 or 5, so the digit of 13C is 2 or 7, so C = 4 (C = 9, rounding off) d = 8, few people have such patience to answer