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A=raw_input()
B=raw_input()
C=raw_input()
Ord=ord('a')
a=[A.count(chr(I))for I in range(Ord,26+Ord)]
Ans=''
'''
b=[B.count(chr(I))for I in range(Ord,26+Ord)]
c=[C.count(chr(I))for I in range(Ord,26+Ord)]
'''
X=False
XX=False
Tmp=a[:]
C_1=0
while not X:
    for Cha in B:
        if a[ord(Cha)-Ord]:
            a[ord(Cha)-Ord]-=1
        else:
            X=True
            break
    if not X:
        C_1+=1
        Tmp=a
    else:
        a=Tmp
Tmp_2=a[:]
C_2=0
while not XX:
    for Cha in C:
        if a[ord(Cha)-Ord]:
            a[ord(Cha)-Ord]-=1
        else:
            XX=True
            break
    if not XX:
        C_2+=1
        Tmp_2=a
    else:
        a=Tmp_2
Ans=B*C_1+C*C_2
for I in range(len(a)):
    Ans+=a[I]*chr(I+Ord)
print Ans
