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from sys import stdin, stdout
from collections import defaultdict
a = str(stdin.readline().strip())
b = str(stdin.readline().strip())
c = str(stdin.readline().strip())
map = defaultdict(int)
for char in a:
    map[char] += 1
b_map ={} 
for char in b:
    b_map[char] =map[char]/b.count(char)
count_b = min(b_map.itervalues())
c_map= {}
for char in c:
    c_map[char]= map[char]/c.count(char)    
count_c = min(c_map.itervalues())
if count_c>=count_b:
    smaller = c
    count = count_c
    other = b
else:
    smaller = b
    count = count_b
    other = c 
for x in range(count):
    stdout.write(smaller)
for char in smaller:
    map[char] = map[char]- count
other_map = {}
for char in other:
    other_map[char] = map[char]/other.count(char)
count_other = min(other_map.itervalues())
for x in range(count_other):
    stdout.write(other)
for char in other:
    map[char] = map[char]-count_other
for key,val in map.iteritems():
    if val>0:
        for x in range(val):
            stdout.write(key)