View Compilation Error

0_0_21154214_18163.cpp:10:15: error: empty character constant
      cout<<a<<''<<b<<''<<c<<endl;
               ^
0_0_21154214_18163.cpp:10:22: error: empty character constant
      cout<<a<<''<<b<<''<<c<<endl;
                      ^
0_0_21154214_18163.cpp: In function 'int mian()':
0_0_21154214_18163.cpp:6:11: error: expected '(' before '{' token
      while{
           ^
0_0_21154214_18163.cpp:6:11: error: expected primary-expression before '{' token
0_0_21154214_18163.cpp:6:11: error: expected ')' before '{' token