output: ``` [peekRight] 1 [forEach] 1 [peekRight] ...

# stdlib

[vmironov]

output:

[peekRight] 1
[forEach] 1
[peekRight] 2
[forEach] 2
[peekRight] 3
[forEach] 3
=============
[peekWrong] 1
[peekWrong] 2
[peekWrong] 3
[forEach] 1
[forEach] 2
[forEach] 3