#include <stdio.h>

int main(void) {
	const char *s="at+recv_data=open,0,49247,192.168.123.2";
	char x[100],y[100];
	int i;
	if( 3==sscanf(s,"%*[^=]=%[^,],%d,%*d,%s",x,&i,y))
	printf("%s%d%s",x,i,y);
	return 0;
}