SumIf question

[infuse]

HI Experts:

Thanks in advance for the help!!
I have three columns A, B and C. I want to compare numerical part of A (entry of A is combination of numeric and text) and if that PART is equal to the entry in B sum C corresponding to that. Example

Column A--------Column B---------Column C

21365ac -----------3215---------------- 56
654ewf--------------654 -----------------10
21354d-------------21354----------------12
2dfgtfjgh--------------2-------------------4

In the above example, second row, Column A and Column B has the same numeric part, 654. So I take column C = 10 for addition. Now row three, Column A and B has same numeric part that is 21354 so I add column C which is 12 to the previous 10. I think you guys got the point.

Pleas don’t give the formula; please give me the functions that I can use to get their. I am struggling with separating the numerical part, since it is not of same length. If anybody can help with that part I know how to do the rest. If VBA is the option then I think I can manage. But what I would like to know is, are there any way to do this with formulas?

Thanks
Infuse