import re
from collections import Counter
def main():
  N,M=map(int,input().split())
  assert(0<=N<=50000)
  assert(1<=M<=50000)
  d=Counter()
  S_set=set()
  T_set=set()
  for i in range(N):
    S,A=input().split()
    assert(1<=int(A)<=9999)
    assert(re.fullmatch("^\w+$",S)!=None)
    assert(2<=len(S)<=16)
    S_set.add(S)
    d[S]=int(A)
  assert(len(S_set)==N)
  for i in range(M):
    T,B=input().split()
    assert(1<=int(B)<=9999)
    assert(re.fullmatch("^\w+$",T)!=None)
    assert(2<=len(T)<=16)
    assert(d[T]<=int(B))
    T_set.add(T)
    d[T]=int(B)
  assert(len(T_set)==M)
  ans=sorted(list(d.items()),key=lambda x:x[0])
  for user,rate in ans:
    print(user,rate)
  return

main()