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diff --git a/662/CH12/EX12.14/Example12_14.sci b/662/CH12/EX12.14/Example12_14.sci
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+            //Example 12.14
+        //Updating Customer Records
+        
+Date = struct('month',0,'day',0,'year',0);
+lastpayment = Date;
+account = struct('Name'," ",'street'," ",'city'," ",'acct_no',0,'acct_type',' ','oldbalance',0,'newbalance',0,'payment',0,'lastpayment',0);
+customer = account;
+
+function[] = main()
+    printf("CUSTOMER BILLING SYSTEM\n\n");
+    printf("How many customers are there?");
+    n = scanf("%d");
+    
+    for i = 1:n;
+        customer = readinput(i,customer);
+        //determine account status
+        if customer(i).payment > 0 then
+            if customer(i).payment < (0.1*customer(i).oldbalance) then
+                customer(i).acct_type = 'O';
+            else
+                customer(i).acct_type = 'C';
+            end
+        else
+            if customer(i).oldbalance > 0 then
+                 customer(i).acct_type='D';
+            else
+                 customer(i).acct_type='C';
+            end
+        end
+        //adjust account balance
+        customer(i).newbalance = customer(i).oldbalance - customer(i).payment;
+    end
+    for i = 1:n
+        writeoutput(i,customer);
+    end
+endfunction
+
+function[customer] = readinput(i,customer)
+    //read input data and update record for each customer
+    printf("\nCustomer no. %d\n",i);
+    printf("    Name:    ");
+    customer(i).name=read(%io(1), 1, 1, '(a)') ;
+    printf("    Street:    ");
+    customer(i).street=read(%io(1), 1, 1, '(a)') ;  
+    printf("    City:    ");
+    customer(i).city=read(%io(1), 1, 1, '(a)') ;
+    printf("    Account Number:    ");
+    customer(i).acct_no=scanf("%d") ;
+    printf("    Previous Balance:    ");
+    customer(i).oldbalance=scanf("%d") ;
+    printf("    Current Payment:    ");
+    customer(i).payment=scanf("%d") ;
+    printf("    Payment date (mm/dd/yyyy):\n ");
+        printf("Month: ");
+        customer(i).lastpayment.month=scanf("%d");
+        printf("Day: ");
+        customer(i).lastpayment.day=scanf("%d") ;
+        printf("Year: ");
+        customer(i).lastpayment.year=scanf("%d") ;
+    return customer;
+endfunction
+
+function[] = writeoutput(i,customer)
+    printf("\nName:    ");
+    write(%io(2),customer(i).name);
+    printf("Account number: %d\n", customer(i).acct_no);
+    printf("Street: "); 
+    write(%io(2),customer(i).street);
+    printf("City:    ");
+    write(%io(2),customer(i).city);
+    printf("Old balance: %7.2f", customer(i).oldbalance);
+    printf("    Current payment: %7.2f", customer(i).payment);
+    printf("    New balance: %7.2f\n\n", customer(i).newbalance);
+    printf("Account status:    ");
+    
+    select customer(i).acct_type
+    case 'C' then
+        printf("CURRENT\n\n");
+    case 'D' then
+        printf("DELINQUENT\n\n");
+    case 'O' then
+        printf("OVERDUE\n\n");
+    else
+        printf("ERROR\n\n");
+    end
+    return;
+endfunction
+
+//calling main()
+funcprot(0);
+main();
+\ No newline at end of file