Code:#include <iostream.h>
int main()
{
int number1;
int number2;
int stonum;
int count=0;
int num1;
int num2=1;
cout<<"Enter one single-digit number: ";
cin>>number1;
cout<<"Enter one single-digit number: ";
cin>>number2;
cout<<endl;
cout<<number1<<" "<<number2;
while (((number1)!=(num1))&&((number2)!=(num2)))
{
if (count<1)
{
num1=number1;
num2=number2;
}
count++;
stonum=((num1+num2)%10);
cout<<" "<<stonum;
number1=number2;
number2=stonum;
}
cout<<endl;
return (0);
}