使用sumif创建公式，if和or

I want to make formula with sumif and with conditions i tried but its failing to provide sum.I want to find value if conditions: 1. G/L is 62810101 or 62810100 then value for 81810101 and 81810100 should be calculated or vice versa. 2.If code is A2+B2 then value for B2+A2 should be find in document currency.I want to make formula with sumif and with cond