tag_management = {}

photo_num = int(input())
for i in range(photo_num):
    input()
    tmp = input().split()
    tag_num = int(tmp[0])
    point = int(tmp[1])
    tags = input().split()
    for j in range(tag_num):
        if tags[j] not in tag_management:
            tag_management[tags[j]] = point
        else:
            tag_management[tags[j]] += point
        
#print(tag_management)
word_sorted_tag = sorted(tag_management.items(),key=lambda x: x[0])
sorted_tag = sorted(word_sorted_tag, key=lambda x: -x[1])
count = 0
for i in range(len(sorted_tag)):
    count += 1
    k,v = sorted_tag[i]
    print(str(k) + " " + str(v))
    if count == 10:
        break
"""
for k, v in sorted(tag_management.items(), key=lambda x: x[1]):
    print(str(k) + " " + str(v))
"""