# Python Program to print all Possible Combinations from the three Digits

• Difficulty Level : Medium
• Last Updated : 29 Aug, 2020

Given 3 digits a, b, and c. The task is to find all the possible combinations from these digits.

Examples:

```Input: [1, 2, 3]
Output:
1 2 3
1 3 2
2 1 3
2 3 1
3 1 2
3 2 1

Input: [0, 9, 5]
Output:
0 9 5
0 5 9
9 0 5
9 5 0
5 0 9
5 9 0
```

Method 1: Brute force or Naive approach

The naive approach is to run 3 loops from 0 to 3 and print all the numbers from the list if the indexes are not equal to each other.

Example:

## Python3

 `# Python program to print all ` `# the possible combinations ` ` `  `def` `comb(L): ` `     `  `    ``for` `i ``in` `range``(``3``): ` `        ``for` `j ``in` `range``(``3``): ` `            ``for` `k ``in` `range``(``3``): ` `                 `  `                ``# check if the indexes are not ` `                ``# same ` `                ``if` `(i!``=``j ``and` `j!``=``k ``and` `i!``=``k): ` `                    ``print``(L[i], L[j], L[k]) ` `                     `  `# Driver Code ` `comb([``1``, ``2``, ``3``])`

Output:

```1 2 3
1 3 2
2 1 3
2 3 1
3 1 2
3 2 1
```

Method 2: Using itertools.permutations()

This method takes a list as an input and returns an object list of tuples that contain all permutation in a list form.

Example:

## Python3

 `# Python program to print all ` `# the possible combinations ` ` `  `from` `itertools ``import` `permutations ` ` `  `# Get all combination of [1, 2, 3] ` `# of length 3 ` `comb ``=` `permutations([``1``, ``2``, ``3``], ``3``) ` ` `  `for` `i ``in` `comb: ` `    ``print``(i)`

Output:

```(1, 2, 3)
(1, 3, 2)
(2, 1, 3)
(2, 3, 1)
(3, 1, 2)
(3, 2, 1)
```

My Personal Notes arrow_drop_up
Related Articles