Fix printx & return
Fix main sorce
Merge branch 'master' of https://github.com/miraclelinux/StudyMtgKNCT-2013-12
Fix 070.txt
Merge branch 'master' of https://github.com/miraclelinux/StudyMtgKNCT-2013-12
Merge branch 'master' of https://github.com/miraclelinux/StudyMtgKNCT-2013-12
Merge branch 'master' of https://github.com/miraclelinux/StudyMtgKNCT-2013-12
Merge branch 'master' of https://github.com/miraclelinux/StudyMtgKNCT-2013-12