Vacuum cleaner with a floor mopper

1void setup()
2{
3Serial.begin(9600);
4pinMode(13, OUTPUT);//dc motor
5pinMode(11,  OUTPUT);
6pinMode(12, OUTPUT);
7digitalWrite(12, HIGH);
8pinMode(9, OUTPUT);
9digitalWrite(9,  HIGH);
10 
11}
12void loop()
13{
14if(Serial.available() > 0)
15{
16char  data= Serial.read();
17Serial.print(data);
18Serial.println(data);
19if(data  == 'a')
20{digitalWrite(13, HIGH);
21digitalWrite(11, LOW) ;
22}
23else if(data  == 'b')
24{digitalWrite(13, LOW);
25digitalWrite(11, HIGH) ;
26}
27else if(data=='c')
28{digitalWrite(13,  HIGH) ;
29digitalWrite(11, HIGH) ;}
30else{
31digitalWrite(13, LOW) ;
32digitalWrite(11,  LOW) ;
33}
34}
35}

1void setup()
2{
3Serial.begin(9600);
4pinMode(13, OUTPUT);//dc motor
5pinMode(11,
6  OUTPUT);
7pinMode(12, OUTPUT);
8digitalWrite(12, HIGH);
9pinMode(9, OUTPUT);
10digitalWrite(9,
11  HIGH);
12 
13}
14void loop()
15{
16if(Serial.available() > 0)
17{
18char
19  data= Serial.read();
20Serial.print(data);
21Serial.println(data);
22if(data
23  == 'a')
24{digitalWrite(13, HIGH);
25digitalWrite(11, LOW) ;
26}
27else if(data
28  == 'b')
29{digitalWrite(13, LOW);
30digitalWrite(11, HIGH) ;
31}
32else if(data=='c')
33{digitalWrite(13,
34  HIGH) ;
35digitalWrite(11, HIGH) ;}
36else{
37digitalWrite(13, LOW) ;
38digitalWrite(11,
39  LOW) ;
40}
41}
42}