while loop help

I have to make a program for class to maintain a bank balance. The problem I am having is I can make all my deposits then my withdrawals, but i cant return to deposit after i make a withdrawal. How can I make it with only one while loop so i can switch between the two without any problems?

Code:

int main()
{
        double total = 0.0;

        double x;

        char resp;

        explanation();

        printf("BANK ACCOUNT PROGRAM\n");
        printf("--------------------\n\n");

        printf("Please Enter the old balance: ");
        scanf("%lf%*c",&total);
        printf("Enter the transactions now.\n");
        printf("Enter an \"F\" for the transaction type when you are finished.\n\n");
        printf("Transaction Type (D=Deposit, W=Withdrawal, F=Finished): ");
        scanf("%c%*c",&resp);

        while(resp=='D') 
        {
                printf("Amount: ");
                scanf("%lf%*c",&x);
                
                total = total + x;  

                printf("Transaction Type (D=Deposit, W=Withdrawal, F=Finished): ");
                scanf("%c%*c",&resp);
        }

        while(resp=='W')
        {
                printf("Amount: ");
                scanf("%lf%*c",&x);

                total = total - x;

                printf("Transaction Type (D=Deposit, W=Withdrawal, F=Finished): ");
                scanf("%c%*c",&resp);
        }

        while(resp=='F')
        {
                printf("Your ending balance is: $%8.2lf\n",total);
                printf("Program Ending");
        }
}