Write a program that solves for the root of a univariate polynomial with a maximum degree of .

#### Input Specification

Line of the input contains an integer , indicating the number of terms in the polynomial.

The next lines each contain a real number coefficient and a whole number exponent from to inclusive.

Terms will always be collected (i.e. exponents will not be repeated) and arranged in descending powers.

#### Output Specification

In order from lowest value to highest value, every real solution for when the polynomial is equal to zero.

Your answer must be accurate within in absolute and relative error.

If there are no real solutions to the equation, output `NO REAL ROOTS`

.

**Note:** Coefficients and answers can have up to digits, and will fit inside a `long double`

.

#### Sample Input 1

```
2
2 3
-54 0
```

#### Sample Output 1

`3`

#### Explanation for Sample Output 1

This asks for the solution(s) of for the equation .

#### Sample Input 2

```
3
3 2
4 1
-20 0
```

#### Sample Output 2

```
-3.33333
2
```

#### Explanation for Sample Output 2

This asks for the solution(s) of for the equation .

## Comments