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void Enter_values(char** matrix , int& row , int& col)
{
    char tav = NULL;
    int i = 0;
    int j = 0;
    do
    {
        std::cout<<"Enter your tav -> "<<std::endl;
        std::cin>>tav;
        if (tav == 'G')
        {
            matrix[i][j] = tav;
            for (i = 0; i < row; ++ i)
            {
                for (j = 0; j < col; ++ j)
                {
                    std::cout<< "  | " << matrix[i][j];
                }
                std::cout<<std::endl;
            }
            std::cout<<std::endl;
            std::cout<<std::endl;
            std::cout<<std::endl;
            std::cout<<std::endl;
        }
        ++i;
        ++j;
        
            
    }
        
    while ((tav != 'G') && (tav != 'M') && (tav != 'C') && (tav != 'R'));
}