int elnum(int num, int p){
	int t = 0, k = 0;
	t = num % s(10,p);
	if(p >= 2){
    k = num % s(10, p-1);
    num = (t - k)/s(10, p-1);
    //cout << k<< '|' <<num << "|" << t << endl;
	}else{
    k = num % 1;
    num = (t - k)/1;
	}
	return num; 
}