16.py

length = int(input()) - 3

arr = [input() for _ in range(int(input()))]

for elem in arr:
    if len(elem) < length:
        print(elem)
        length -= len(elem)
    elif len(elem) == length:
        print(f"{elem}...")
        break
    else:
        print(f"{elem[:length]}...")
        break