#include "iostream.h" 
 
#include "cmt_std.h" 
#include "cmt_string.h" 
 
int main () 
{ 
	cmt_string a = "1234567890"; 
 
	cmt_string b = a.substr (5); 
 
	a.erase (0, 5); 
 
	cout << "a=[" << a << "] b=[" << b << "]" << endl; 
 
	return 0; 
}