Q: After boot camp, can't boot into Mac, only OS X Utilities

I have a Mac Book Pro with Retina Display (Late 2013) and the latest OS X Captain installed. After I installed Windows 8.1 on a separate partition of 50 Gb using Boot Camp Assistant from a USB pen drive, I was unable to boot back into Mac. Most probably, it happened because I deleted some small-size partitions while installing Windows 8.1. However, I left untouched Recovery partition of about 600 Mb and Macintosh HD partition which is about 200Gb. Holding of Option key gave me Recovery Partition and Windows partition only. I erased Windows partition using OS X Disk Utility and renamed "untitled" partition of 200 Gb into "Macintosh HD" hoping that I would allow me to boot into Mac but I failed. Running of my HD using First Aid says that all is ok. So, disk utility shows me Apply SSD drive with Recovery HD partition and Apply Disk Image. Is there any way of fixing Master Boot Record or whatever so that I could boot into Mac? I have very weak Internet connection to do a complete re-install of OS X Captain.

I will be grateful for any help you can provide.