import sys

ALPH = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "/", ":", ".", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]


def check(start):
    n = start
    while n + 1 < len(s) and s[n + 1] != " ":
        a = s[n + 1]
        if s[n + 1] in ALPH:
            n += 1
        else:
            return -1
    if n - start > 6:
        return n + 1 #not include
    else:
        return -1

l = int(input())
a = []
b = []
f = []
s = input()
if len(s) <= l:
    print(s)
    print(0)
    sys.exit()
n = s.count("http://")
start = s.find("http://")
f.append(start)
finish = check(start)
if finish != -1:
    a.append(start)
    b.append(finish)
for i in range(1, n):
    start = s.find("http://", f[-1] + 1, len(s))
    f.append(start)
    finish = check(start)
    if finish != -1:
        a.append(start)
        b.append(finish)
n = len(a)
delta_len = 0
for i in range(n):
    delta_len += b[i] - a[i] - 3
z = len(s)
x = delta_len
y = len(s) - l
delta = min(delta_len, len(s) - l)
ans = max(0, y - x)

s_len = len(s)
s_ans = s[:a[0]]
p = 0
while delta > 0:
    if delta > b[p] - a[p] - 3:
        s_ans += "..." + s[b[p]:a[p + 1]]
        delta -= b[p] - a[p] - 3
    elif delta < b[p] - a[p] - 3:
        s_ans += s[a[p]:b[p] - delta - 3]
        s_ans += "..."
        s_ans += s[b[p]:]
        delta = 0
    else:
        s_ans += "..." + s[b[p]:]
        delta = 0
    p += 1

print(s_ans)
print(ans)