The one-month forward price in 2.EUR/USD is 1.3485/95, and the futures price is 1.3489 USD. The buying price of forward euro is lower than the futures price, but the selling price is higher than the futures price. There are two options.
One is to buy a one-month forward euro and sell the same amount of euro futures. Without considering the transaction cost, the net profit per euro at maturity is:1.3489-1.3485 = 0.0004 USD.
The second is to sell one-month forward euros and buy the same amount of euro futures. Without considering the transaction cost, the net profit per euro at maturity is:1.3495-1.3489 = 0.0006 USD.
Numerically, the operation should choose the latter.