In this program, You will learn how to find the sum of first and last digit of a number in Kotlin.

`1234 = 1 + 4 => 5`

## Example: How to find the sum of first and last digit of a number in Kotlin.

```
import java.util.Scanner
fun main(args: Array<String>) {
var n: Int
var r: Int
var fd: Int
var ld: Int
var s: Int
var rev = 0
var sc = Scanner(System.`in`)
print("Enter a number:")
n = sc.nextInt()
ld = n % 10
while (n > 0) {
r = n % 10
rev = rev * 10 + r
n /= 10
}
fd = rev % 10
s = fd + ld
println("Sum of first and last digits:$s")
}
```

#### Output:

```
Enter a number:3452
Sum of first and last digits:5
```