문제: https://www.acmicpc.net/problem/17219
문제 해결 방법
import sys
input = sys.stdin.readline
N, M = map(int, input().split())
MEMO = {}
for n in range(N):
key, value = input().split()
MEMO[key] = value
for m in range(M):
key = input().strip()
print(MEMO[key])