so i think we might have nested loops in my upcoming final.

so im practicing some challanges.

heres a program sample

For how many years have you collected rainfall data? 2

Enter the rainfall (in inches) for month 1 of year 1: 4

Enter the rainfall (in inches) for month 2 of year 1: 5.2

Enter the rainfall (in inches) for month 3 of year 1: 4.7

Enter the rainfall (in inches) for month 4 of year 1: 3.6

Enter the rainfall (in inches) for month 5 of year 1: 2.3

Enter the rainfall (in inches) for month 6 of year 1: .6

Enter the rainfall (in inches) for month 7 of year 1: .1

Enter the rainfall (in inches) for month 8 of year 1: .3

Enter the rainfall (in inches) for month 9 of year 1: 2.4

Enter the rainfall (in inches) for month 10 of year 1: 3.7

Enter the rainfall (in inches) for month 11 of year 1: 5.2

Enter the rainfall (in inches) for month 12 of year 1: 7.1**Enter the rainfall (in inches) for month 1 of year 2: 5.2
Enter the rainfall (in inches) for month 2 of year 2: 6.5
Enter the rainfall (in inches) for month 3 of year 2: 4.4
Enter the rainfall (in inches) for month 4 of year 2: 6.8
Enter the rainfall (in inches) for month 5 of year 2: 5.1
Enter the rainfall (in inches) for month 6 of year 2: 2.1
Enter the rainfall (in inches) for month 7 of year 2: 0
Enter the rainfall (in inches) for month 8 of year 2: 0
Enter the rainfall (in inches) for month 9 of year 2: .9
Enter the rainfall (in inches) for month 10 of year 2: 2.6
Enter the rainfall (in inches) for month 11 of year 2: 5.1
Enter the rainfall (in inches) for month 12 of year 2**: 4.2

The total number of months of rainfall data: 24

The total inches of rainfall for that period: 82.1

The average rainfall per month for that period: 3.42083

i just need to know how to do that blod bold part. I could just do it by rainfall for month 1, 2, 3, 4, 18, 20, 21, 22, 23, 24 (2 years = 24 months) but i want it if i put 2 years to show 12 months then the other 12 months for the next year.

heres my code so far

```
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
double total = 0.0;// total rainfall inches
int numData;//number of years collected rainfall data
cout <<"For how many years have you collected rainfall data? ";
cin >> numData;
for (int month = 1; month <= numData; month++)
{ float inches;
cout <<"Enter the rainfall (in inches) for month" << month << ": ";
cin >> inches;
}
system("pause");
return 0;
```