# HackerRank itertools.permutations() solution in Python

In this HackerRank itertools.permutations() problem solution in python This tool returns successive r length permutations of elements in an iterable.

If r is not specified or is None, then r defaults to the length of the iterable, and all possible full length permutations are generated.

Permutations are printed in a lexicographic sorted order. So, if the input iterable is sorted, the permutation tuples will be produced in a sorted order.

You are given a string S.

Your task is to print all possible permutations of size k of the string in lexicographic sorted order.

## Problem solution in Python 2 programming.

```from itertools import permutations

S,k = raw_input().split()
k = int(k)

print '\n'.join(sorted(''.join(p) for p in permutations(S,k)))```

## Problem solution in Python 3 programming.

```# Enter your code here. Read input from STDIN. Print output to STDOUT
from itertools import permutations
s,n = input().split()
print(*[''.join(i) for i in permutations(sorted(s),int(n))],sep='\n')```

### Problem solution in pypy programming.

```# Enter your code here. Read input from STDIN. Print output to STDOUT
from itertools import permutations
string_number = raw_input().split()
string = string_number[0]
number = map(int, string_number[1])

for elem in sorted(list(permutations(string, number[0]))):
n = len(elem)
elem_print = ""
for i in range(0, n):
elem_print+=elem[i]
print elem_print```

### Problem solution in pypy3 programming.

```# Enter your code here. Read input from STDIN. Print output to STDOUT
import itertools

ll, n = input().split()

for i in itertools.permutations(sorted(ll),int(n)):
print("".join(i))```