#include <omp.h>main(){	int x;        int i,id; 	x = 0;	#pragma omp parallel shared(x) private(i,id) 	    { //		#pragma omp critical		{	          	    	  id = omp_get_thread_num();    	          printf("before thread %d : X = %d\n",id,x); 		  for(i=0;i<3000000;i++) x = x + 1;	          printf("after  thread %d : X = %d\n",id,x);		}	}  /* end of parallel section */			printf("out of the parallel region : X = %d\n",x);		}