Added sum_of_array_plus_one
Merge pull request #61 from aelaa/sum_of_array_plus_one

Added sum_of_array_plus_one
Added sum-primes
fix issues that using lists
Merge pull request #65 from vyorkin/bugfix/issues

fix issues that using lists
Merge pull request #64 from Krotos/sum-primes

Added sum-primes
Added rotate-sequence
Added perfect-numbers
Merge pull request #66 from Krotos/perfect-numbers

Added perfect-numbers
Merge pull request #59 from Krotos/rotate-sequence

Added rotate-sequence
Delete parse_date task