####
##
## Compute the edge overlap of each edge of the multiplex, i.e. the
## number of times that each edge appears in the multiplex
##
##

import sys


if len(sys.argv) < 2:
    print "Usage: %s <layer1> [<layer2>...]" % sys.argv[0]
    sys.exit(1)

max_N = -1

all_edges = {}

layer_ID = -1

for layer in sys.argv[1:]:
    layer_ID += 1
    with open(layer, "r") as lines:
        for l in lines:
            if l[0] == "#":
                continue
            s, d = [int(x) for x in l.strip(" \n").split(" ")[:2]]
            if s > d:
                tmp = s
                s = d
                d = tmp
            if (s,d) in all_edges:
                all_edges[(s,d)].append(layer_ID)
            else:
                all_edges[(s,d)] = [layer_ID]
                
K = len(all_edges.keys())

for k in all_edges.keys():
    val = len(set(all_edges[(k)]))
    s,d = k
    print s, d, val