Main.cc: In function ‘int main()’:
Main.cc:7:11: error: expected nested-name-specifier before ‘System’
using System;
^~~~~~
Main.cc:8:7: error: expected nested-name-specifier before ‘System’
using System.Linq;
^~~~~~
Main.cc:9:7: error: expected nested-name-specifier before ‘System’
using System.Collections.Generic;
^~~~~~
Main.cc:17:2: error: expected ‘;’ after class definition
}
^
;