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import string
# def correct(l):
#     for num in l:
#         if num < 0
a = raw_input()
b = raw_input()
c = raw_input()
if len(c) > len(b):
    b, c = c, b
letters1 = [0] * 26
for index, char in enumerate(string.ascii_lowercase):
    letters1[index] = a.count(char)
letters2 = [0] * 26
for index, char in enumerate(string.ascii_lowercase):
    letters2[index] = b.count(char)
letters3 = [0] * 26
for index, char in enumerate(string.ascii_lowercase):
    letters3[index] = c.count(char)
flag = True
cnt1 = 0
# print letters1
# print letters2
# print letters3

while flag:
    for index, num in enumerate(letters2):
        if (letters1[index] - letters2[index] >= 0):
            letters1[index] -= letters2[index]
        else:
            flag = False
            break
    if not flag:
        break
    cnt1 += 1
flag = True
cnt2 = 0
while flag:
    cnt2 += 1
    for index, num in enumerate(letters3):
        if (letters1[index] - letters3[index] > 0):
            letters1[index] -= letters3[index]
        else:
            flag = False
            cnt2 -= 1
            break

s = cnt1 * b + cnt2 * c
for index, char in enumerate(string.ascii_lowercase):
    if letters1[index] > 0:
        s += letters1[index] * char
print s
