Program Matrix C++

#include <iostream>
#include <stdio.h>
#include <iomanip>
using namespace std;
int main()
{
int x1[3][3], x2[3][3], Hasil[3][3];
int a,b,c;
cout<<"Nama : SONNY ABRIANTORO"<<endl;
cout<<"NIM : 161552020342"<<endl;
cout<<"Program Perkalian Matriks"<<endl;
cout<<"   Kode Inputan"<<endl;
cout<<"=================="<<endl;
cout<<"[1.1] [1.2] [1.3]"<<endl;
cout<<"[2.1] [2.2] [2.3]"<<endl;
cout<<"[3.1] [3.2] [3.3]"<<endl;
cout<<endl;
cout<<"Masukan Nilai Matriks A :";
for (a=0; a<3; a++) {
for (b=0; b<3; b++) {
cout<<"\nMatriks"<<(a+1)<<"."<<(b+1)<<":";
cin>>x1[a][b];
}
}
cout<<endl;
cout<<"Matriks 3x3 = "<<endl<<endl;
for (a=0; a<3; a++) {
for (b=0; b<3; b++) {
cout<<setw(4)<<x1[a][b]<<"";
}
cout<<endl;
}
cout<<endl;
cout<<"Masukan Nilai Matriks B :";
for (a=0; a<3; a++) {
for (b=0; b<3; b++) {
cout<<"\nMatriks"<<(a+1)<<"."<<(b+1)<<":";
cin>>x2[a][b];
}
}
cout<<endl;
cout<<"Matriks 3x3 = "<<endl<<endl;
for (a=0; a<3; a++) {
for (b=0; b<3; b++) {
cout<<setw(4)<<x2[a][b]<<"";
}
cout<<endl;
}
for (a=0; a<3; a++) {
for (b=0; b<3; b++) {
Hasil[a][b]=0;
for (c=0; c<3; c++) {
Hasil[a][b] = x1[a][b] + x2[a][b];
}
}
}
cout<<endl;
cout<<"Hasil Jumlah Matriks A + Matriks B :"<<endl<<endl;
for (a=0; a<3; a++) {
for (b=0; b<3; b++){
cout<<setw(4)<<Hasil[a][b];
}
cout<<endl;
}

return 0;
}

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