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def subarr(arr1, arr2):
    for l in range(26):
        if(arr1[l]-arr2[l]<0):
            return 0
    for l in range(26):
        arr1[l]=arr1[l]-arr2[l]

    print "arr1: ",
    print arr1
    return 1

a=raw_input()
b=raw_input()
c=raw_input()

if(len(c)<len(b)):
    temp=b
    b=c
    c=temp
blocka=[]
blockb=[]
blockc=[]




for x in range(97, 123):
    blocka.append(a.count(chr(x)))
    blockb.append(b.count(chr(x)))
    blockc.append(c.count(chr(x)))


#print blocka
#print blockb
#print blockc

bovera=[]
covera=[]




mini1=0
#print "blocka: ",
#print blocka
#print "bovera: ",
#print bovera
while(subarr(blocka, blockb)==1):
    mini1=mini1+1


#print blocka


    


mini2=0
while(subarr(blocka, blockc)==1):
    mini2=mini2+1

    


output=""
for x in range(mini1):
    output=output+b
for x in range(mini2):
    output=output+c
for x in range(97, 123):
    for y in range(blocka[x-97]):
        output=output+chr(x)

print output






