So, I had to order a new tire and two new tubes via Amazon after a screw disabled my road bike.

Though I ordered a pair of tubes of the same size and from the same distributor, they came in two different boxes. One is labeled: 700X20-25c. The other: 700X18-23C.

The tube I currently have on my bike is 700X18X23C-27X1. So, I'm assuming the 2nd tube size is correct; however, they both appear to be the exact same dimensions. Are my eyes failing me? Will the 1st tube work or do I need to return it?