renamed:    2.3/checker/1.cpp -> 2.3/checker copy/1.cpp
	renamed:    2.3/checker/checker.in -> 2.3/checker copy/checker.in
	new file:   2.3/nocows/1.cpp
	new file:   2.3/nocows/nocows
	new file:   2.3/nocows/nocows.in
	new file:   2.3/nocows/nocows.out
	new file:   2.4/checker copy/1.cpp
	new file:   2.4/checker copy/checker.in
	new file:   2.4/checker/1.cpp
	new file:   2.4/checker/checker.in
	new file:   3.1/checker copy/1.cpp
	new file:   3.1/checker copy/checker.in
	new file:   3.1/checker/1.cpp
	new file:   3.1/checker/checker.in