Format of files:

First line contains value of N
Second line contains value of M
Next M lines contain  triplets of the form node 1 node2 type

• alicebob_5_10.txt
• alicebob_10_30.txt
• alicebob_100_500.txt
• alicebob_500_600.txt
• alicebob_1000_10000.txt