Revert "Merge commit 'refs/pull/318/head' of https://github.com/dkomanov/fizteh-java-2014 into task4"

This reverts commit 8a785c8c96faf5a14ba45391e7c855f3217331a2, reversing
changes made to a5f57cb38e72449b852b9b236a112b82b175dbc8.
Revert "Revert "Merge commit 'refs/pull/318/head' of https://github.com/dkomanov/fizteh-java-2014 into task4""

This reverts commit 5786c631ad4a9496cd937ae63d65904cd4e172a8.
Revert "Revert "Revert "Merge commit 'refs/pull/318/head' of https://github.com/dkomanov/fizteh-java-2014 into task4"""

This reverts commit 39e4a26c92a22add9167a8b01d142c78a493beee.