static void Main()
{
int acctNum = 49;
int revisedAcctNum = acctNum.AddCheckDigit();
WriteLine("Original account number was {0}", acctNum);
WriteLine("Revised account number is {0}", revisedAcctNum);
}
static void Main()
{
int acctNum = 49;
int revisedAcctNum = acctNum.AddCheckDigit();
WriteLine("Original account number was {0}", acctNum);
WriteLine("Revised account number is {0}", revisedAcctNum);
}