if __name__=='__main__':
    s=input()
    n=len(s)
    k=[]
    for i in range(n):
        if(s[i]>='0' and s[i]<='9'):
            k.append(i)
    m=len(k)
    for i in range(n):
        if(s[i]>='0' and s[i]<='9'):
            m-=1
            print(s[k[m]],end='')
        else:
            print(s[i],end='')
    pass