#include <iostream>
#include <string>
using namespace std;

//reserve seat, seat #, 30 2-3 seatseconomy class, 20 business clas,  10 first class 1

//int seatplan(dataType seats[100][100],int rowNo,int colNo)
int main()
    {
        //declaration
        char  colNo, rowNo;//user seat input
        int row, col;//seatplan
        int seats[15][6];
        //executable



       				cout<<"================== SEAT RESERVATION =================="<<endl
					<<"row [1-15], coloumn [A-D] "<<endl
				    <<"                    ____"<<endl
				    <<"                  _------_"<<endl
				    <<"                 __________"<<endl;
        for(rowNo= 0; rowNo<15; rowNo++)
            {
                for(colNo = 0; colNo <6; colNo++)
                seats [rowNo][colNo] = 'O';
            };


					 for(row=0 ; row<15; row++)
					    {
					        if(row==0)
								{	cout<<"                | A      B |"<<endl;}
							if(row==5)
								{	cout<<"                |A B    C D|"<<endl;}
							if(row==10)
								{	cout<<"                |ABC    DEF|"<<endl;}
							        for(col=0 ; col <30; col++)
										{
					                			if (row<=9&&col==14)
					                			{
					                				cout<<row;
												}
					                			if (row>9&&col==13)
					                			{
					                				cout<<row;
												}
								                if ((row>=0&&row<=4)&&(col<=13 || col==17 || col==19 || col==28 || (col>=21&&col<=26)))
												{
													cout<<" ";
												}
												if ((row>=5&&row<=9)&&(col<=13 || col==14 || col==28 || (col>=21&&col<=25)))
												{
													cout<<" ";
												}
												if ((row>=10&&row<=14)&&(col<=12||col==14||(col>=23&&col<=26)))//(col>=21&&col<=25))
												{
													cout<<" ";
												}
												if (col==18||col==29)
												{
													cout<<"|";
												}
												if ((row>=0&&row<=4)&&(col==20||col==27))
												{
													cout<<seats[rowNo][colNo];
												}
												if ((row>=5&&row<=9)&&(col==20||col==21||col==27||col==28))
												{
													cout<<seats[rowNo][colNo];
												}
												if ((row>=10&&row<=14)&&((col>=20&&col<=22)||(col>=27&&col<=29)))
												{
													cout<<seats[rowNo][colNo];
												}

					            }//for end
					            cout<<endl;
						}//for end
	}//seasts