#include <string.h>
#include <stdio.h>

int main()
{
char * string = "Simulated Annealing = 12847369";
char * value = strchr(string, '=');

*(value ++ ) = 0;


printf("%s ==== %s", value, string);
printf("xxx");
return 0;
}

 12847369 ==== Simulated Annealing = 12847369xxx