Well, let's see

29.5. in a train
30.5. at my friend's place
31.5 outside the stadium
1.6. at my friend's place
2.6. outside the stadium
3.6. in a hotel
4.6. at Jana's place
5.6. outside the stadium
6.6. in a train
7.6. outside the stadium
8.6. outside in Brussels as we all know by now
9.6. in a hostel
10.6. outside the stadium
11.6. in a hostel
12.6. outside the stadium
13.6. in a train
14.6-18.6 in a hotel
19.6. in a train
20.6 in a hotel
21.6. outside the stadium
22.6. in a hotel
23.6 outside the stadium
24.6. on the floor in Anu's hotel room
25.6 in a hotel
26.6. at Tom's parent's place
27.6. in a hotel
28.6 in a hotel
29.6 in a hotel
30.6. at the Skavsta airport

That makes 8 nights outside the stadium, 4 nights at friend's places, 14 nights in a hotel/hostel, 4 nights in a train, 1 night at an airport and 1 night on the street

I'm weird doing this :P