tsocks usage

Let say i have two PC A(ip:60.70.30.40) and B(ip:123.30.40.50, hosting:proxy server, ssh server)
i would like to connect to PC B from PC A, though proxy hosting in PC B using tsocks
in tsocks.conf if i make IP of PC B as local, it wont build the proxy channel
and if i dont, i cant specify PC B as proxy server....
any one know how to solve this problem?