First column: Group number
Second column: users

01 dpg@mit.edu and stardiff@mit.edu
02 carlap@mit.edu and rbaliga@mit.edu
03 tambe@mit.edu and youn@mit.edu
04 fwendie@mit.edu and moka@mit.edu

05 mzsylver@mit.edu and symeser@ksg.harvard.edu
06 sleptsov@mit.edu and jeffm@mit.edu
07 mdullea@mit.edu and tetteh@mit.edu
08 benster@mit.edu and jenlouie@mit.edu
09 lopez@mit.edu and rileyk@mit.edu
10 sneha@mit.edu and ssliving@mit.edu

11 evarady@mit.edu and gmtz@mit.edu
12 jere@mit.edu and pclark@mit.edu
13 spiros@mit.edu and jcarlos@mit.edu
14 ajkent@mit.edu and anuradha@mit.edu
15 mikhak@media.mit.edu and shrestha@mit.edu
16 mstmegs@mit.edu and nicholls@mit.edu
17 sochoa@mit.edu and sputnik@mit.edu
18 cmusic@mit.edu and jcshieh@mit.edu
19 pnichols@mit.edu and samchang@mit.edu
20 sup_rao@mit.edu and zsultan@mit.edu

21 wdstiehl@mit.edu and adoshi@mit.edu and ashok7@mit.edu (a threesome)