#include?<stdio.h>
using?namespace?std;
class?Matric{
????public:
????????Matric(int?_p1,?int?_p2,?int?_p3,?int?_p4){
????????????p1?=?_p1;
????????????p2?=?_p2;
????????????p3?=?_p3;
????????????p4?=?_p4;
????????};
????????Matric(const?Matric?&m){
????????????p1?=?m.p1;
????????????p2?=?m.p2;
????????????p3?=?m.p3;
????????????p4?=?m.p4;
????????};
????????Matric?operator*(const?Matric?&m){
????????????int?_p1?=?p1?*?m.p1?+?p2?*?m.p3;
????????????int?_p2?=?p1?*?m.p2?+?p2?*?m.p4;
????????????int?_p3?=?p3?*?m.p1?+?p4?*?m.p3;
????????????int?_p4?=?p3?*?m.p2?+?p4?*?m.p4;
????????????Matric?res(_p1,?_p2,?_p3,?_p4);
????????????return?res;
????????}
????????int?p1;
????????int?p2;
????????int?p3;
????????int?p4;
};
int?main(){
????Matric?m1(1,?2,?3,?4);
????Matric?m2(1,?0,?1,?0);
????Matric?m?=?m1?*?m2;
????printf("%d?%d?\n%d?%d\n",?m.p1,?m.p2,?m.p3,?m.p4);
????return?0;
}