# PROBLEM LINK:

Practice

Contest: Division 1

Contest: Division 2

Contest: Division 3

Contest: Division 4

* Author:* iceknight1093

*pols_agyi_pols*

**Tester:***iceknight1093*

**Editorialist:**# DIFFICULTY:

TBD

# PREREQUISITES:

None

# PROBLEM:

Chef found N clovers, of which one of them was four-leaved and the rest were three-leaved.

How many leaves is that in total?

# EXPLANATION:

The single four-leaf clover contributes 4 leaves.

There are N-1 remaining clovers, which are all three-leaved. So, their total number of leaves is

3\cdot (N-1).

The total number of leaves is thus

3\cdot (N-1) + 4

# TIME COMPLEXITY:

\mathcal{O}(N) per testcase.

# CODE:

## Editorialist's code (Python)

```
n = int(input())
print(3*n + 1)
```