/in/foo.cc: In function 'int main()':
/in/foo.cc:7:15: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
               ^
/in/foo.cc:7:17: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                 ^
/in/foo.cc:7:19: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                   ^
/in/foo.cc:7:21: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                     ^
/in/foo.cc:7:23: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                       ^
/in/foo.cc:7:25: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                         ^
/in/foo.cc:7:27: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                           ^
/in/foo.cc:7:29: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                             ^
/in/foo.cc:7:31: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                               ^
/in/foo.cc:7:33: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                                 ^
/in/foo.cc:7:35: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                                   ^
/in/foo.cc:7:37: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                                     ^
/in/foo.cc:7:38: warning: right operand of comma operator has no effect [-Wunused-value]
     cin>>a ,b,c,d,e,f,g,h,i,j,k,l,m,n;
                                      ^
/in/foo.cc:13:10: error: expected ';' before string constant
   cout<<6"No";
          ^~~~