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a = input()
b = input()
c = input()
if len(b) > len(c):
    b, c = c, b

bucketA = [0]*26
bucketB = [0]*26
bucketC = [0]*26

for i in a: bucketA[ord(i)-ord('a')] += 1
for i in b: bucketB[ord(i)-ord('a')] += 1
for i in c: bucketC[ord(i)-ord('a')] += 1

ans = ''
flag = True
while flag:
    for ba, bb in zip(bucketA, bucketB):
        if ba < bb:
            flag = False
            break
    else:
        for i, bb in enumerate(bucketB):
            bucketA[i] -= bb
            assert bucketA[i] >= 0
        ans += b

flag = True
while flag:
    for ba, bc in zip(bucketA, bucketC):
        if ba < bc:
            flag = False
            break
    else:
        for i, bc in enumerate(bucketC):
            bucketA[i] -= bc
            assert bucketA[i] >= 0
        ans += c

for i, ba in enumerate(bucketA):
    ans += (chr(ord('a')+i) * ba)
print(ans)
    

