Welcome Vlad! I'm glad you made it here. I was looking at the Cort AC100 that you were looking at, and vs the Yamaha, I think that would be a fine 1st classical guitar for you. Probably better than the Yamaha if the Cort has a truss rod.
Let us know when you get one, and also check out what strings are available to you locally in medium tension. Don't buy strings from Amazon, eBay, or Ali Express as you will likely be getting low quality counterfeits from them. Especially if you order from Ali Express or eBay. Amazon is kind of a Turkey Shoot.
If you have to buy them from Amazon, make sure that they are being sold by Amazon, and not some third party seller.
There are some things that you will want to have when you get your new guitar.
1. A clip on headstock tuner and an extra battery for it
2. A set or two of extra strings in medium tension
3. A small bottle of fretboard oil for guitars or a small bottle of bore oil for woodwind instruments
4. A ruler that is 12 inches long or a straight edge of similar length
5. A 6 inch ruler that measures in millimeters
6. A peg winder
7. A small Phillips screwdriver.
If you are able to get international mail from the United States, I can send you most of what was listed above. I can't sent batteries or liquids or the ruler due to size. If you can get international mail I can send you the other stuff. Just send me your name and address in a private message.
Scott