View Compilation Error

0_0_13933981_30474.c: In function 'main':
0_0_13933981_30474.c:1:36: error: lvalue required as decrement operand
 main(b,c,a){b++;a=b<<b;gets(&c);c%=--(--b<<a);c—a*a+a+a;puts(&c);}
                                    ^
0_0_13933981_30474.c:1:1: error: stray '\241' in program
 main(b,c,a){b++;a=b<<b;gets(&c);c%=--(--b<<a);c—a*a+a+a;puts(&c);}
 ^
0_0_13933981_30474.c:1:1: error: stray '\252' in program
0_0_13933981_30474.c:1:50: error: expected ';' before 'a'
 main(b,c,a){b++;a=b<<b;gets(&c);c%=--(--b<<a);c—a*a+a+a;puts(&c);}
                                                  ^