Main.cc: In function 'int main()':
Main.cc:10:5: error: expected ';' before 'b'
b=456
^
Main.cc:8:11: warning: unused variable 'b' [-Wunused-variable]
int a,b,c;
^
Main.cc:8:13: warning: unused variable 'c' [-Wunused-variable]
int a,b,c;
^