With everyone in the group putting their heads together, the code was cracked quickly.
The string of numbers was formed with the numbers 0, 1, and 2. What's more, 0 did not appear more than once at a time. One could see it as a separator. Naturally, people thought of the Morse code.
Taking the 0's as the separators, the 1's as dots, and the 2's as dashes, one would be able to form a Morse code.
—.-..-…-…..-..-.-…—..-.-..-.-…..-.-…..-…-.-.-…
This could be converted to a string of English alphabets.
GDBBEAICEADCECHCHBCB.
This could be converted to numbers, in the same way as the string of alphabets in The Lonely Desert Road.
74225193514353838232.
Compare those numbers to the keypad on a cell phone.
SBJYJILVUE.
Its double pinyin was 'soujingjilvshe'.