19 Year old & 20 Year old guys looking for accommodation in Berlin

Hi there, My name is Darren, i'm 20 years of age this year. My friend's name is Darren as well. We are currently looking for an accomadation in Berlin for our studies in Berlin.  Our language school would be at Friedrichshain but we dont mind walking or taking the public transport to our school. As long as we can find a place to stay, we are happy. We prefer an apartment that has two seperate rooms for us as we would like our own privacy as well. We dont mind sharing the bathroom together. Also, we would want a kitchen workplace as well. If possible a small living room would be good too. Our budget is around 600-700 euros per month. Furthermore, our stay would be roughly around 6 months or so. Thanks in advance! Hope to hear from you soon.