def lookForMatch(strn, dct):
    for line in dct:
        if len(strn) > len(line):
            comp_flag = False
            k = 0
            while (len(line) + k <= len(strn)):
                zero_count = strn.count("0")
                for i in range(len(line)):
                    if strn[i+k] == line[i] or strn[i+k] == '0':
                        if strn[i+k] == "0":
                            zero_count -= 1
                        else:
                            comp_flag = True
                    else:
                        comp_flag = False
                        break
                if comp_flag and not zero_count:
                    return line
                k += 1
        else:
             continue
    return "NONEXIST"