const byte Seven_seg[7]= {2,3,4,5,6,7,8};
int counter = 0;
const int Sw1 = 10;
boolean lastState;
boolean reading;
boolean state=LOW;
byte number[10]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,0x7F,0x6F};
void setup() {
 fon(int i = 2; i<=8;i++){
  pinMode(Seven_seg[i], OUTPUT);
 }
 pinMode(Sw1, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:

}