Harryxun/stf_run huggingface dataset:
S = input()
T = input()

ans = "UNRESTORABLE"
if len(T)>len(S):
    ans = "UNRESTORABLE"
else:
    Slr = list(S[::-1])
    Tlr = list(T[::-1])
    
    for i in range(len(S)-len(T)+1):
        flag = True
        for j in range(len(T)):
            if Slr[i+j]==Tlr[j] or Slr[i+j]=="?":
                pass
            else:
                flag = False
                break
        if flag:
            for j in range(len(T)):
                Slr[i+j] = Tlr[j]
            for j in range(len(S)):
                if Slr[i+j]=="?":
                    Slr[i+j] = "a"
            ans = ("".join(Slr[::-1]))
            break
        else:
            if i==len(S)-len(T):
                ans = "UNRESTORABLE"
                break
print(ans)





### FIXED CODE ###


S = input()
T = input()

if len(T)>len(S):
    ans = "UNRESTORABLE"
else:
    Slr = list(S[::-1])
    Tlr = list(T[::-1])
    for i in range(len(S)-len(T)+1):
        flag = True
        for j in range(len(T)):
            if Slr[i+j]==Tlr[j] or Slr[i+j]=="?":
                pass
            else:
                flag = False
                break
        if flag:
            for j in range(len(T)):
                Slr[i+j] = Tlr[j]
            for j in range(len(S)):
                if Slr[j]=="?":
                    Slr[j] = "a"
            ans = ("".join(Slr[::-1]))
            break
        else:
            if i==len(S)-len(T):
                ans = "UNRESTORABLE"
print(ans)
r,g,b = input().split()

l = g*b

if int(l) % 4 == 0:
  print('YES')
else:
  print('NO')

### FIXED CODE ###

r,g,b = input().split()

l = g+b

if int(l) % 4 == 0:
  print('YES')
else:
  print('NO')
s = str(input())
ans = 0
for i in range(len(s)):
count = 0
    if S[i] == "A" or "T" or "C" or "G":
        count += 1
        for j in range(len(s)-i):
            if S[j] == "A" or "T" or "C" or "G":       
                count += 1:
            else:
                break:
    if ans < count:
        ans = count
print(ans)

### FIXED CODE ###

S = str(input())
ans = []
for i in range(len(S)):
    preans = []
    if S[i] == "A" or S[i] == "C" or S[i]  == "G" or S[i] =="T":
        preans.append(S[i])
        for j in range(1,len(S)-i):
            if S[i+j] == "A" or S[i+j] == "C" or S[i+j]  == "G" or S[i+j] =="T":
                preans.append(S[i+j])
            else:
                break
    if len(preans) > len(ans):
        ans = preans
if len(ans) == 2 and ans[0] == "A" and ans[1] == "C":
    print(0)
else:
    print(len(ans))
N = int(input())
a = [int(i) for i in input().split()]

a.sort()
for i in range(N-1):
    if a[i-1] ^ a[i+1] == a[i]:
        continue
    else:
        print("No")
        exit()

if a[N-2] ^ a[0] != a[N-1]:
    print("No")
    exit()

print("Yes" if flag else "No")


### FIXED CODE ###

from collections import Counter
N = int(input())
a = [int(i) for i in input().split()]

c = Counter(a)

if c[0] == N:
    print("Yes")
    exit()

if N % 3 == 0 and c[0] == N // 3 and len(c.values()) == 2:
    print("Yes")
    exit()

n =  N // 3
k = list(c.keys())
v = list(c.values())

if N % 3 == 0 and v == [n, n, n] and k[0]^k[1]^k[2] == 0:
    print("Yes")
    exit()

print("No")
#coding: utf-8
N, M = map(int, input().split())
points = list(map(int, input().split()))
points.sort()
koma = [points[i+1] - points[i] for i in range(M-1)]
sum_ = sum(koma)
for i in range(N-1):
  sum_ -= max(koma)
  koma.remove(max(koma))
print(sum_)

### FIXED CODE ###

#coding: utf-8
N, M = map(int, input().split())
points = list(map(int, input().split()))
if N > M:
  print(0)
else:
  points.sort()
  koma = [points[i+1] - points[i] for i in range(M-1)]
  koma.sort()
  print(sum(koma[:M-N]))
n = int(input())
a = map(int, input().split())

ans = 0
for i in a:
  if i != a[i]-1:
    ans += 1
    
if ans <= 2:
  print("YES")
else:
  print("NO")

### FIXED CODE ###

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

ans = 0
for i in range(len(a)):
  if i != a[i]-1:
    ans += 1
    
if ans <= 2:
  print("YES")
else:
  print("NO")
H,W = map(int,input().split())
if H ==0 and W==0: break
else:
  print(("#"*W+"¥n")*H)


### FIXED CODE ###

while True:
    H,W = map(int,input().split())
    if H ==0 and W==0: break
    for i in range(0,H) :
        print('#'*W)
    print()
n = input()
A = map(int, input().split())
q = input()
m = map(int, input().split())

 def solve(i, m):
  if i == m:
   return true
  if i > n:
   return false
  res = solve(i + 1, m) || solve(i + 1, m - A(i))
   return res
 
 for j in range(0, q):
  if m == solve(j, m(j)):
   print "yes"
  else:
   print "no"

### FIXED CODE ###

n = input()
A = map(int, raw_input().split())
q = input()
m = map(int, raw_input().split())

def solve(i, m):
 if m == 0:
  return True
 if i >= n or m > sum(A):
  return False
 res = solve(i+1, m) or solve(i+1, m-A[i])
 return res

for j in range(0, q):
 if solve(0, m[j]):
  print 'yes'
 else:
  print 'no'
#073-C
def IL(): return list(map(int,input().split()))
def SL(): return input().split()
def I(): return int(input())
def S(): return input()
n=I()
a=[]
for i in range(n):
    t=I()
    a.append(t)
b=list[set(a)]
c={}
for i in b:
    c[i]=0
for i in a:
    c[a]+=1
for i in c.keys():
    if c[i]%2==1:
        cnt+=1
print(cnt)

### FIXED CODE ###

#073-C
def IL(): return list(map(int,input().split()))
def SL(): return input().split()
def I(): return int(input())
def S(): return input()
n=I()
a=[]
for i in range(n):
    t=I()
    a.append(t)
b=list(set(a))
c={}
cnt=0
for i in b:
    c[i]=0
for i in a:
    c[i]+=1
for i in c.keys():
    if c[i]%2==1:
        cnt+=1
print(cnt)
H, W = map(int, input().split())
S = [list(input()) for _ in range(H)]

ans = set()


def f(i, j):
    seen[i][j] = 1
    if S[i][j] == '.':
        ans.add((s, (i, j)))
    if i != 0:
        if seen[i-1][j] == 0 and S[i-1][j] != S[i][j]:
            f(i-1, j)
    if i != H-1:
        if seen[i+1][j] == 0 and S[i+1][j] != S[i][j]:
            f(i+1, j)
    if j != 0:
        if seen[i][j-1] == 0 and S[i][j-1] != S[i][j]:
            f(i, j-1)
    if j != W-1:
        if seen[i][j+1] == 0 and S[i][j+1] != S[i][j]:
            f(i, j+1)


for i in range(H):
    for j in range(W):
        if S[i][j] == '#':
            seen = [[0] * W for i in range(H)]
            s = (i, j)
            f(i, j)

print(len(ans))


### FIXED CODE ###

import collections
import sys
sys.setrecursionlimit(1000000)


H, W = map(int, input().split())
S = [list(input()) for _ in range(H)]


seen = [[False] * W for i in range(H)]
move = ((-1, 0), (1, 0), (0, -1), (0, 1))

q = collections.deque()


def bfs(i, j):
    b, w = 0, 0
    seen[i][j] = True
    q.append((i, j))

    while q:
        ci, cj = q.popleft()

        if S[ci][cj] == '#':
            b += 1
        else:
            w += 1

        for di, dj in move:
            ni = ci+di
            nj = cj+dj
            if 0 <= ni < H and 0 <= nj < W:
                if seen[ni][nj] is False and S[ci][cj] != S[ni][nj]:
                    seen[ni][nj] = True
                    q.append((ni, nj))

    return b*w


ans = 0
for i in range(H):
    for j in range(W):
        if S[i][j] == '#' and seen[i][j] is False:
            ans += bfs(i, j)

print(ans)
from collections import deque
from bisect import bisect_left
S = input()
# dp[i][j]はうしろからi桁を13で割った余りがjであるものの個数
dp = [[0] * 13 for _ in range(len(S) + 1)]
dp[0][0] = 1
mul = 1
mod = 10**9 + 7

for i in range(len(S)):
  x = S[-(i+1)]
  if x == '?':
    for k in range(10):
      for j in range(13):
        dp[i+1][(mul*k+j)%13] += dp[i][j]
        dp[i+1][(mul*k+j)%13] %= mod
  else:
    k = int(x)
    for j in range(13):
      dp[i+1][(mul*k+j)%13] += dp[i][j]
      dp[i+1][(mul*k+j)%13] %= mod
  mul = mul*10 % 13  
print(dp[len(S)][5])

### FIXED CODE ###

a, b = map(int, input().split( ))
s = a + b
if s %2 ==1:
  print('IMPOSSIBLE')
else:
  print(s//2)
def CountingSort(A, k):
    C = [0] * k
    B = C[:]
    for a in A:
        C[a] += 1
    for i in range(1, len(C)):
        C[i] += C[i - 1]
    for i in range(len(A) - 1, -1, -1):
        B[C[A[i]]] = A[i]
        C[A[i]] -= 1
    return B


if __name__ == '__main__':
    N = int(input())
    A = [int(i) for i in input().strip().split()]
    sorted_A = CountingSort(A, int(20E4))
    print(' '.join([str(a) for a in sorted_A[1:len(A) + 1]]))

### FIXED CODE ###

def CountingSort(A, k):
    C = [0] * k
    B = C[:]
    for a in A:
        C[a] += 1
    for i in range(1, len(C)):
        C[i] += C[i - 1]
    for i in range(len(A) - 1, -1, -1):
        B[C[A[i]]] = A[i]
        C[A[i]] -= 1
    return B



if __name__ == '__main__':
    N = int(input())
    A = [int(i) for i in input().strip().split()]
    sorted_A = CountingSort(A, int(3E6))
    print(' '.join([str(a) for a in sorted_A[1:len(A) + 1]]))
#d-even relation
n=int(input())
visitedlist=[-1 for  i in range(n)]
lists=[tuple(map(int,input().split())) for i in range(n-1)]
kilist=[[] for i in range(n)]
for i in lists:
    kilist[i[0]-1].append([i[1],i[2]])
    kilist[i[1]-1].append([i[0],i[2]])   
anslist=[0 for i in range(n)]
searchedlist=[0 for i in range(n)]
def search(i):
        searchedlist[i-1]=1
        visitedlist[i-1]=1
        flag=0
        for j in kilist[i-1]:
            if visitedlist[j[0]-1]<0:
                visitedlist[j[0]-1]=1
                flag+=1
                anslist[j[0]-1]=(anslist[i-1]+j[1])%2
        if flag>0:    
            for k in kilist[i-1]:
                if searchedlist[k[0]-1]==0:
                    search(k[0])
        else:
            return 

search(1)
for i in anslist:
    print(i%2)


### FIXED CODE ###

import sys
sys.setrecursionlimit(100000)

n=int(input())
visitedlist=[-1 for  i in range(n)]
kilist=[[] for i in range(n)]
anslist=[0 for i in range(n)]
searchedlist=[-1 for i in range(n)]
for i in range(n-1):
        a,b,c=map(int,input().split())
        kilist[a-1].append((b,c))
        kilist[b-1].append((a,c))
def search(i):
        searchedlist[i-1]=1
        visitedlist[i-1]=1
        flag=0
        for j in kilist[i-1]:
            if visitedlist[j[0]-1]<0:
                visitedlist[j[0]-1]=1
                flag+=1
                anslist[j[0]-1]=anslist[i-1]+j[1]
        else:
            pass

        if flag>0:    
            for k in kilist[i-1]:
                if searchedlist[k[0]-1]==-1:
                    search(k[0])
search(2)
for i in anslist:
    print(i%2)
def prepare(n, MOD):
    # 1! - n! の計算
    f = 1
    factorials = [1]  # 0!の分
    for m in range(1, n + 1):
        f *= m
        f %= MOD
        factorials.append(f)
    # n!^-1 の計算
    inv = pow(f, MOD - 2, MOD)
    # n!^-1 - 1!^-1 の計算
    invs = [1] * (n + 1)
    invs[n] = inv
    for m in range(n, 1, -1):
        inv *= m
        inv %= MOD
        invs[m - 1] = inv
     
    return factorials, invs

def combinations_count(n, r, factorials, invs):
    return (factorials[n] * invs[n-r] * invs[r]) % (10 ** 9 + 7)
 
f = open("151_E_max01", "r")
n, k = map(int, f.readline().split())
a = sorted(list(map(int, f.readline().split())))

factorials, invs = prepare(n, 10 ** 9 + 7)

ans = 0
for i in range(n):
    if i <= n - k:
        ans -= a[i] * combinations_count(n-i-1, k-1, factorials, invs)
    
    if i >= k - 1:
        ans += a[i] * combinations_count(i, k-1, factorials, invs)
    
    ans = ans % (10 ** 9 + 7)
 
print(ans)

### FIXED CODE ###

import string

key = input()
alphabet = string.ascii_lowercase
print(alphabet[alphabet.index(key) + 1])
c = input()
if len(c) == 2:
  print(c)
else:
  c[0], c[2] = c[2], c[0]
  print(c)


### FIXED CODE ###

c = input()
if len(c) == 2:
  print(c)
else:
  print(c[2]+c[1]+c[0])
def make_tables(m):
    fac=[1,1]
    finv=[1,1]
    inv=[0,1]
    for i in range(2,m+1):
        fac.append((fac[-1]*i)%mod)
        inv.append((-inv[mod%i]*(mod//i))%mod)
        finv.append(finv[i-1]*inv[i]%mod)
    return fac,finv
 calc_nCk(n,k,fac,finv):
    if n<k or (n<0 or k<0):
        return 0
    k=min(k,n-k)
    return fac[n]*(finv[k]*finv[n-k]%mod)%mod

x,y=map(int,input().split())
mod=10**9+7
n=(y-0.5*x)/1.5
if int(n)!=n:
    print(0)
else:
    m=(y+x)//3
    l=int(n)
    fac,finv=make_tables(m)
    ans = calc_nCk(m,l,fac,finv)
    print(ans)


### FIXED CODE ###

def make_tables(m):
    fac=[1,1]
    finv=[1,1]
    inv=[0,1]
    for i in range(2,m+1):
        fac.append((fac[-1]*i)%mod)
        inv.append((-inv[mod%i]*(mod//i))%mod)
        finv.append(finv[i-1]*inv[i]%mod)
    return fac,finv

def calc_nCk(n,k,fac,finv):
    if n<k or (n<0 or k<0):
        return 0
#    k=min(k,n-k)
    return fac[n]*(finv[k]*finv[n-k]%mod)%mod

x,y=map(int,input().split())
mod=10**9+7
n=(y-0.5*x)/1.5
if int(n)!=n:
    print(0)
else:
    m=(y+x)//3
    l=int(n)
    fac,finv=make_tables(m)
    ans = calc_nCk(m,l,fac,finv)
    print(ans)
a, b, c = map(int, input().split)
print(c, a, b)

### FIXED CODE ###

a, b, c = map(int, input().split())
print(c, a, b)
N = input()
A, B = map(int, input().split())

if N == 1:
    print("Hello World")
elif N == 2:
    print(A + B)
else:
    print(-1)

### FIXED CODE ###

N = int(input())
if N == 1:
    print("Hello World")
else:
    A = int(input())
    B = int(input())
    print(A + B)
from operator import itemgetter

N = int(input())
Red = [list(map(int,input().split())) for _ in range(N)] #赤
Blue = [list(map(int,input().split())) for _ in range(N)] #青

Red1 = sorted(A, key=itemgetter(1),reverse = True)
Blue1 = sorted(B, key=itemgetter(0)) #ここが違った
cnt = 0

for i in range(N): 
    for j in range(N):
        if (Blue1[i][0] > Red1[j][0]) and (Blue1[i][1] > Red1[j][1]):
            cnt+=1
            Red1[j] = [500,500] #これがなかった
            #print(B1[i],A1[j])
            break #これがなかった
print(cnt)

### FIXED CODE ###

from operator import itemgetter

N = int(input())
Red = [list(map(int,input().split())) for _ in range(N)] #赤
Blue = [list(map(int,input().split())) for _ in range(N)] #青

Red1 = sorted(Red, key=itemgetter(1),reverse = True)
Blue1 = sorted(Blue, key=itemgetter(0)) #ここが違った
cnt = 0

for i in range(N): 
    for j in range(N):
        if (Blue1[i][0] > Red1[j][0]) and (Blue1[i][1] > Red1[j][1]):
            cnt+=1
            Red1[j] = [500,500] #これがなかった
            #print(B1[i],A1[j])
            break #これがなかった
print(cnt)
n = int(input())
a = list(map(int, input().split()))
ai = max(a)
aj = min(filiter(lambad x: x!=ai, a), key=lambda x: abs(x-ai//2))
print("{} {}".format(ai, aj))


### FIXED CODE ###

# coding=utf-8
a, b, x = map(int, input().split())
if a <= x and x<= a+b:
    print("YES")
else:
    print("NO")
import random

def calc(t, D, s):
  last = [0 for _ in range(26)]
  value = 0
  for i in range(D):
    day = i + 1
    value += s[i][t[i]]
    last[t[i]] = day
    for j in range(26):
      value -= c[j] * (day - last[j])
  return value

D = int(input())
c = list(map(int, input().split()))
s = [list(map(int, input().split())) for _ in range(D)]

t = random.sample(range(26), k=D)

val = calc(t, D, s)
for _ in range(1000):
  d_rand = random.randrange(D)
  q_rand = random.randrange(26)
  old = t[d_rand]
  t[d_rand] = q_rand
  if val > calc(t, D, s):
    continue
    t[d_rand] = old
  else:
    val = calc(t, D, s)

for i in range(D):
  print(t[i]+1)

### FIXED CODE ###

D = int(input())
c = list(map(int, input().split()))
s = [list(map(int, input().split())) for _ in range(D)]

for i in range(D):
  print(s[i].index(max(s[i]))+1)
t = int(input())
s = set()
for i in range(t):
  s.add(int(input()))
print(len(s))

### FIXED CODE ###

if __name__ == '__main__':
    t = list(input())

    t[3] = '8'
    print(''.join(t))
A, B, C, D = map(int, input().split())

if abs(A - C) <= D: #直接会話する場合
  print("Yes")
elif (abs(A - B) <= D) AND (abs(B - C) <= D): #間接的に会話する場合
  print("Yes")
else:
  print("No")

### FIXED CODE ###

A, B, C, D = map(int, input().split())

if abs(A - C) <= D: #直接会話する場合
  print("Yes")
elif (abs(A - B) <= D) and (abs(B - C) <= D): #間接的に会話する場合
  print("Yes")
else:
  print("No")
n,k = map(int, input())
lis = []
for i in range(1,N+1):
    count = 0
    while i < k:
        i *= 2
        count += 1
    lis.append(count)
result = 0
for i in lis:
    result += 1/n*0.5**i
print(result)

### FIXED CODE ###

n,k = map(int, input().split())
lis = []
for i in range(1,n+1):
    count = 0
    while i < k:
        i *= 2
        count += 1
    lis.append(count)
result = 0
for i in lis:
    result += 1 / n * 0.5 **i
print(result)
N, H = input().strip().split(' ')
N, H =[int(N),int(H)]
L =list()
for i in range(0,N):
    X, Y = input().strip().split(' ')
    X, Y =[int(X), int(Y)]
    L.append([X,Y])

L0 = list()
for i in range(0,N):
    L0.append(L[i][0])

L1 = list()
for i in range(0,N):
    L1.append(L[i][1])

M = max(L0)
L2 = list()

for i in range(0,N):
    if L1[i] > M:
        L2.append(L1[i])

L2 = sorted(L2)

count = 0

for i in range(0,len(L2)):
    H -= L2[i]
    count += 1
    if H <= 0:
        print(count)
        break

if H > 0:
    if H % M ==0:
        count += H//M
        print(count)
    else:
        count += H//M + 1
        print(count)

### FIXED CODE ###

x = list(input().strip().split('/'))
x[0] = 2018

print(str(x[0])+'/'+str(x[1])+'/'+str(x[2]))
n=int(input())
num=list(map(int,input().split()))
don=[]
cnt=0
#don.append(num[0])
for i in num:
	flg=True
	for j in don:
		if i > j:
			flg=False
	if flg:
		#don.append(i)
        cnt+=1
print(cnt)


### FIXED CODE ###

n=int(input())
num=list(map(int,input().split()))
cnt=1
min_n=num[0]
for i in range(1,n):
    if num[i] <= min_n:
        min_n=num[i]
        cnt+=1
print(cnt)
N = int(input())
power = 1

for i in range(1,N+1):
 power = (i * power % P) 

print(power)

### FIXED CODE ###

N = int(input())
P = 10**9 + 7

power = 1

for i in range(1,N+1):
 power = (i * power % P)

print(power)
is_Prime = [True] * (10**6 + 1)
is_Prime[0] = False
is_Prime[1] = False
for i in range(2, int(10**3)+1):
    for j in range(2*i, 10**6+1, i):
        if j % i == 0:
            is_Prime[j] = False
P = [i for i in range(n+1) if is_Prime[i]]

N = int(input())
count = 0
for p in P:
    count_p = 0
    while N % p == 0:
        count_p += 1
        N /= p
    count += int((-1+(1+8*count_p)**(1/2))/2)
    if p == P[-1] and N != 1:
        count += 1
print(count)

### FIXED CODE ###

N = int(input())
n = min(N, 10**6)
is_Prime = [True] * (n + 1)
is_Prime[0] = False
is_Prime[1] = False
for i in range(2, int(n**(1/2)+1)):
    for j in range(2*i, n+1, i):
        if j % i == 0:
            is_Prime[j] = False
P = [i for i in range(n+1) if is_Prime[i]]

count = 0
for p in P:
    count_p = 0
    while N % p == 0:
        count_p += 1
        N /= p
    count += int((-1+(1+8*count_p)**(1/2))/2)
    if p == P[-1] and N != 1:
        count += 1
print(count)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
sys.setrecursionlimit(10**6)

def dfs(string,bracket):
    i = 0
    while i < len(string):
        if bracket == '[' and string[i] == ']':
            return i
        elif bracket == '(' and string[i] == ')':
            return i
        elif string[i] == '(' or string[i] == '[':
            ret = dfs(string[i+1:],string[i])
            ret += 1
            if ret  == False:
                return False
            i += ret
        i += 1
    return True if bracket == '' else False


while True:
    string = list(input())
    if len(string) == 1 and string[0] == '.':
        break
    ans = 'yes' if dfs(string,'') else 'no'
    print(ans)

### FIXED CODE ###

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
sys.setrecursionlimit(10**6)

def dfs(string,bracket):
    i = 0
    while i < len(string):
        if bracket == '[' and string[i] == ']':
            return i
        elif bracket == '(' and string[i] == ')':
            return i
        elif string[i] == ')' or string[i] == ']':
            return False
        elif string[i] == '(' or string[i] == '[':
            ret = dfs(string[i+1:],string[i])
            if ret is False:
                return False
            i += ret + 1
        i += 1
    return True if bracket == '' else False


while True:
    string = list(input())
    if len(string) == 1 and string[0] == '.':
        break
    ans = 'yes' if dfs(string,'') else 'no'
    print(ans)
#https://atcoder.jp/contests/abc168/tasks/abc168_a

while True:
    #入力を受け取りｎに代入
    n=list(input())
    #１の位をとってくる

    poo=n[-1]

    if poo in "24579":
        print("hon")
    elif poo in "0168":
        print("pon")
    elif poo=="3":
        print("bon")



### FIXED CODE ###

#入力を受け取りｎに代入
n=list(input())
#１の位をとってくる

poo=n[-1]

if poo in "24579":
     print("hon")
elif poo in "0168":
    print("pon")
elif poo=="3":
    print("bon")
n, a = int(input()), list(map(int, input().split()))
print(*a[::-2], *a[n % 2::2])

### FIXED CODE ###

from collections import deque

q = deque()

n = int(input())
*a, = map(int, input().split())
for i, x in enumerate(a):
    if i % 2 == 0:
        q.append(x)
    else:
        q.appendleft(x)
if n % 2:
    print(*reversed(q))
else:
    print(*q)
#その10

O = str(input())
E = str(input())
P = []
for i in range(len(O)):
    P.append(O[i])
    if i <= len(E):
        P.append(E[i])
print(''.join(P))

### FIXED CODE ###

#その10

O = str(input())
E = str(input())
P = []
for i in range(len(O)):
    P.append(O[i])
    if i < len(E):
        P.append(E[i])
print(''.join(P))
# coding: utf-8

# In[28]:

import sys
#input = sys.stdin.readline
N = int(input())
A = list(map(int, input().split()))


# In[21]:

#import numpy as np
#A.sort(key=lambda x:abs(x))
#print(N, A)


# In[25]:

#A = np.array(A)
#print(sum(A<0))
#if sum(A<0)%2 == 0:
#    print(sum(abs(A)))
#else:
#    print(sum(abs(A[1:])) - abs(A[0]))


# In[29]:

B = list(map(abs, A))
C = [a for a in A if a < 0]
#print(A)
#print(B)
#print(C)


# In[30]:

if len(C)%2 ==0:
    print(sum(B))
else:
    print(sum(B) - min(B)*2)


# In[ ]:





### FIXED CODE ###


# coding: utf-8

# In[ ]:

A, B, T = map(int, input().split())


# In[ ]:

#A, B, T = 3, 5, 7


# In[ ]:

print(T//A*B)
import math

r = int(input())
print('{0} {1}'.format(math.pi*(r**2),2*math.pi*r))

### FIXED CODE ###

import math

r = float(input())
print('{0} {1}'.format(math.pi*r**2,2*math.pi*r))
n = int(input())
a = list(map(int, input().split()))
ans = [0] * (max(a)+1)
for i in range(n):
  ans[a[i]] += 1
ans.sort(reverse = True)
if ans[0] < 2:
  print("YES")
else:
  print("NO")


### FIXED CODE ###

from collections import Counter

n = int(input())
a = list(map(int, input().split()))
ans = max(Counter(a).values())
if ans < 2:
  print("YES")
else:
  print("NO")
import math
from collections import Counter
n, m = map(int, input().split())

prime_count = Counter()
for i in range(2, math.ceil(math.sqrt(m))+1):
    while m % i == 0:
        m /= i
        prime_count[i] += 1
if m > 1:
    prime_count[int(m)] += 1

b_max = max([i for i in prime_count.values()])

fac = [1, 1]
finv = [1, 1]
inv = [0, 1]
Mod = 10**9+7
def COMinit():
    #N_C_kのN
    for i in range(2, n+b_max):
        fac.append(fac[-1]*i%Mod)
        inv.append((-inv[Mod%i] * (Mod//i)) % Mod)
        finv.append(finv[-1] * inv[-1] % Mod)


def COM(n, k):
    if n < 0 or k < 0 or n < k:
        return 0
    return fac[n] * (finv[k] * finv[n-k] % Mod) % Mod

ans = 1
COMinit()
for b in prime_count.values():
    ans *= COM(n+b-1, n-1)
    ans %= Mod 

print(ans)

### FIXED CODE ###

import math
import collections

Max = 210000
Mod = 1000000007
fac = [0] * Max
finv = [0] * Max
inv = [0] * Max
def COMinit():
    fac[0] = fac[1] = 1
    finv[0] = finv[1] = 1
    inv[1] = 1
    for i in range(2, Max):
        fac[i] = fac[i-1] * i % Mod 
        inv[i] = Mod - inv[Mod%i] * (Mod//i) % Mod
        finv[i] = finv[i-1] * inv[i] % Mod 

def COM(n, k):
    if n < 0 or k < 0 or n < k:
        return 0
    return fac[n] * (finv[k] * finv[n-k] % Mod) % Mod

N, M = map(int, input().split())
prime_count = collections.Counter()
for i in range(2, math.ceil(math.sqrt(M))+1):
    while M % i == 0:
        M /= i
        prime_count[i] += 1
if M > 1:
    prime_count[M] += 1

ans = 1
COMinit()
for i, b in prime_count.items():
    tmp = COM(b+N-1, N-1)
    ans = (ans * tmp) % Mod 
print(ans)