
# slower version:

s = input()
for i in range(len(s)):
  if i%2 == 0:
    print(s[i], end = '')


# optimized version of the same code:

s = input()
ans = ''
for i in range(len(s)):
  if i % 2 == 0:
    ans += s[i]
print(ans)



# slower version:

n, k = list(map(int, input().split()))

a_s = list(map(int, input().split()))

dp = ["Second"] * (k + 1)

for i in range(k + 1):

    if dp[i] == "Second":

        for a in a_s:

            ii = i + a

            if ii <= k:

                dp[ii] = "First"

print((dp[-1]))


# optimized version of the same code:

n, k = list(map(int, input().split()))

a_s = list(map(int, input().split()))

dp = ["Second"] * (k + 1)

for i in range(k + 1):

    if dp[i] == "Second":

        for a in a_s:

            ii = i + a

            if ii > k:break

            dp[ii] = "First"

print((dp[-1]))

n, k = list(map(int, input().split()))
a_s = list(map(int, input().split()))
dp = ["Second"] * (k + 1)
for i in range(k + 1):
    if dp[i] == "Second":
        for a in a_s:
            ii = i + a
            if ii <= k:
                dp[ii] = "First"
print((dp[-1]))

n, k = list(map(int, input().split()))
a_s = list(map(int, input().split()))
dp = ["Second"] * (k + 1)
for i in range(k + 1):
    if dp[i] == "Second":
        for a in a_s:
            ii = i + a
            if ii > k:
                break
            dp[ii] = "First"
print((dp[-1]))

-            if ii <= k: -                dp[ii] = "First" +            if ii > k: +                break +            dp[ii] = "First"