#include <stdio.h>
#include <string.h>
 
int main ()
{
    char rcv_buf[512] = "jdskla u843 ujdfnfgv 8945zt8vfdjk 85u8nfg8u ifjv438 ut3 PW=nfdg 349 dfjgn8348";
    char *pos = strstr(rcv_buf, "PW=");
    puts(pos);
    return 0;
}