d = dict()
for _ in range(int(input())):
    s = [i for i in input().split()]
    name = s[0]; point = int(s[1])
    point = int(point)
    d[name] = d.get(name, 0) + point
d = list(d.items())
d.sort(key = lambda x: (-x[1], x[0]) )
for item in d:
    print(item[0], item[1])