// C++ code
//

int led = 13;
int led1 = 12 ;
int led2 = 11;
int led3 = 10;
int ligabt = 7;
int desligabt = 2;
int soma = 1;
bool ligaprocess = 0;



void setup()
{
   pinMode (ligabt, INPUT_PULLUP);
   pinMode (desligabt, INPUT_PULLUP);
   pinMode (led, OUTPUT);
   pinMode (led1, OUTPUT);
   pinMode (led2, OUTPUT);
   pinMode (led3, OUTPUT);
     Serial.begin(9600);
}

void loop() {

      if(digitalRead(ligabt)==0) {

        ligaprocess = 1;

      }

      if (digitalRead(desligabt)==0) {
        ligaprocess=0;
        
      }
        Serial.print("PROCESS =");Serial.println(ligaprocess);

         if(ligaprocess == 1) {
           for(int x=1; x<=50; x++) {
               if (digitalRead(desligabt)==0) {
               ligaprocess=0;
               break;
               }
             Serial.print(x);
           for(int z =1; z<=4; z++) {
            soma = z;
            Serial.println(soma);
                if (soma ==1) {
                digitalWrite (led, HIGH);
                digitalWrite (led1, LOW);
                digitalWrite (led2, LOW);
                digitalWrite (led3, LOW);
                }
                 if (soma == 2) {
       
                digitalWrite (led, LOW);
                digitalWrite (led1, HIGH);
                digitalWrite (led2, LOW);
                digitalWrite (led3, LOW);
                }
                 if (soma == 3) {
       
                digitalWrite (led, LOW);
                digitalWrite (led1, LOW);
                digitalWrite (led2, HIGH);
                digitalWrite (led3, LOW);
                 }

                if (soma == 4) {
     
                digitalWrite (led, LOW);
                digitalWrite (led1, LOW);
                digitalWrite (led2, LOW);
                digitalWrite (led3, HIGH);
        
               }
                delay(50);
      
             }
        
        }
              delay(1000);

               for(int x=1; x<=50; x++) {
                 if(digitalRead(desligabt) ==0 or ligaprocess == 0) {
                  ligaprocess = 0;
                  break;
                 }
                  Serial.print(x);
               }
                 for(int z =4; z>=1; z--) {
                  soma = z;
                 Serial.println(soma);
                    if (soma ==1) {
                     digitalWrite (led, HIGH);
                     digitalWrite (led1, LOW);
                     digitalWrite (led2, LOW);
                     digitalWrite (led3, LOW);
                    }
                    if (soma == 2) {
       
                     digitalWrite (led, LOW);
                     digitalWrite (led1, HIGH);
                     digitalWrite (led2, LOW);
                     digitalWrite (led3, LOW);
                     }
                   if (soma == 3) {
       
                     digitalWrite (led, LOW);
                     digitalWrite (led1, LOW);
                     digitalWrite (led2, HIGH);
                     digitalWrite (led3, LOW);
                     }

                    if (soma == 4) {
     
                      digitalWrite (led, LOW);
                      digitalWrite (led1, LOW);
                      digitalWrite (led2, LOW);
                      digitalWrite (led3, HIGH);
        
                    }
                    delay(50);

                  }
               }
 
              }