Tambah Matriks [function]

#include<iostream>
#include<iomanip>

using namespace std;
int orA,orB;
int m1[10][10],m2[10][10];
void garis();
int tambah(int mata[10][10], int matb[10][10]);
main(){
    int hasil[10][10];
    system ("color 0A");
    garis();
    cout << setw(36)<<"Program Pertambahan Matriks\n";
    garis();
    cout << "Silahkan Masukan Jumlah Baris : "; cin >> orA;
    cout << "Silahkan Masukan Jumlah Kolom : " ; cin >> orB;
    cout << "Ordo Matriks Anda : " << orA << " x " << orB<<endl;
    garis();
    //input matriks A
    cout << "Masukan Matriks Pertama : "<<endl;
    for (int i=0;i<orA;i++){
        for (int j=0;j<orB;j++){
            cout << "Masukan Matriks baris ke " << (i+1) << " Kolom ke "<<(j+1)<<" : ";
            cin >> m1[i][j];
        }
    }
    //Input matriks B
    cout << "Masukan Matriks Kedua : "<<endl;
    for (int i=0;i<orA;i++){
        for (int j=0;j<orB;j++){
            cout << "Masukan Matriks baris ke " << (i+1) << " Kolom ke "<<(j+1)<<" : ";
            cin >> m2[i][j];
        }

    }

    garis();
    //tampil matriks a
    cout << "Matriks A"<<endl;
    for (int i=0;i<orA;i++){
        for (int j=0;j<orB;j++){
            cout <<setw(4)<< m1[i][j]<<setw(4);
        }
    cout <<endl;
    }
    // matb
    cout << "\nMatriks B"<<endl;
    for (int i=0;i<orA;i++){
        for (int j=0;j<orB;j++){
            cout <<setw(4) << m1[i][j]<<setw(4);
        }
    cout <<endl;
    }
    cout <<"\n------------------------------------------ +"<< endl;
    tambah(m1,m2);

cin.get();
}

void garis(){
    cout << "==========================================\n";
}


int tambah(int mata[10][10], int matb[10][10]){
    int matc[10][10];
    for (int i=0;i<orA;i++){
        for (int j=0;j<orB;j++){
            matc[i][j]=m1[i][j]+m2[i][j];
        }
    }

    for (int i=0;i<orA;i++){
        for (int j=0;j<orB;j++){
            cout <<setw(4) << matc[i][j]<<setw(4);
        }
    cout <<endl;
    }

    return matc[10][10];
}