Puzzle to Puzzle YOU

A.Rajnikanth says:

Given: 
A + B + C 

Use these rules: 
1st two digits = (A + B + C) + (A * C) 
2nd two digits = (A + B) + (A * B) 
3rd two digits =A*(A + 1) 

SOLUTION FOR 5 + 7 + 4: 
A=5, B=7, C=4 
(5 + 7 + 4) + (5 * 4) = 16 + 20 = 36 
(5 + 7) + (5 * 7) = 12 + 35 = 47 
5 * (5 + 1) = 30 
–> 364730 

SOLUTION FOR 9 + 6 + 3: 
A=9, B=6, C=3 
(9 + 6 + 3) + (9 * 3) = 18 + 27 = 45 
(9 + 6) + (9 * 6) = 15 + 54 = 69 
9 * (9 + 1) = 90 
–> 456990 

SOLUTION FOR 8 + 2 + 9: 
A=8, B=2, C=9 
(8 + 2 + 9) + (8 * 9) = 19 + 72 = 91 
(8 + 2) + (8 * 2) = 10 + 16 = 26 
8 * (8 + 1) = 72 
–> 912672 

SOLUTION FOR 7 + 3 + 5: 
A=7, B=3, C=5 
(7 + 3 + 5) + (7 * 5) = 15 + 35 = 50 
(7 + 3) + (7 * 3) = 10 + 21 = 31 
7 * (7 + 1) = 56 
—> 503156 

Answer: 
503156