Echo modified

+  main.cpp
+  Echo.vcxproj -> C:\Users\yim jiyoung\Desktop\git\A\Test\Echo\Debug\Echo.exe
+  Echo.vcxproj -> C:\Users\yim jiyoung\Desktop\git\A\Test\Echo\Debug\Echo.pdb (Partial PDB)

+#TargetFrameworkVersion=v4.0:PlatformToolSet=v140:EnableManagedIncrementalBuild=false:VCToolArchitecture=Native32Bit:WindowsTargetPlatformVersion=8.1
+Debug|Win32|C:\Users\yim jiyoung\Desktop\git\A\Test\Echo\|

@@ -6,6 +6,8 @@ int main()
 {
 	string input;
 	cin >> input;
+	if (input == "exit")
+		exit(0);
 	cout << input << endl;
 	return 0;
 }
\ No newline at end of file