Print prime index characters in a string

Problem to find the prime number index characters.

Example-1:

Input    : n = "mycrazycoding"
Output   : crzcn 
Explain  : Prime indexes are 2,3,5,7,11. So output is "crzcn".

Example-2:

Input    : n = "Helloworld"
Output   : llwr 
Explain  : Prime indexes are 2,3,5,7. So output is "llwr".

Solution

n = "mycrazycoding"

m = len(n)

l = []

d = ""

for i in range(2,m):

    for j in range(2,i):

        if(i % j == 0):

            break

    else:

        l.append(i)

for x in l:

    d += n[x]

print(d)

Output

crzcn