random lights- multiple LED Dice together

/*
 * Divya Inaganti
 * June 23, 2017
 * random lights- multiple LED Dice together
 */
const int datapin = 11;
const int latchpin = 12;
const int clockpin = 13;

int light[7]= {2, 4, 8, 16, 32, 64, 128};
int bar[7]= {2, 6, 14, 30, 62, 126, 254};
//int bar[7]= {0, 1, 3, 7, 15, 31, 63, 127, 255};


void setup()
{
  pinMode(datapin, OUTPUT);
  pinMode(latchpin, OUTPUT);
  pinMode(clockpin, OUTPUT);

  digitalWrite(latchpin, LOW);
  shiftOut(datapin, clockpin, MSBFIRST, B11111111);
  shiftOut(datapin, clockpin, MSBFIRST, B11111111);
  shiftOut(datapin, clockpin, MSBFIRST, B11111111);
  shiftOut(datapin, clockpin, MSBFIRST, B11111111);
  shiftOut(datapin, clockpin, MSBFIRST, B11111111);
  shiftOut(datapin, clockpin, MSBFIRST, B11111111);
  digitalWrite(latchpin, HIGH);
  delay(1000);
   digitalWrite(latchpin, LOW);
  shiftOut(datapin, clockpin, MSBFIRST, B00000000);
  shiftOut(datapin, clockpin, MSBFIRST, B00000000);
  shiftOut(datapin, clockpin, MSBFIRST, B00000000);
  shiftOut(datapin, clockpin, MSBFIRST, B00000000);
  shiftOut(datapin, clockpin, MSBFIRST, B00000000);
  shiftOut(datapin, clockpin, MSBFIRST, B00000000);
  digitalWrite(latchpin, HIGH);
  delay(1000);
}
void loop()
{

   digitalWrite(latchpin, LOW);
  shiftOut(datapin, clockpin, MSBFIRST, random (2, 255));
  shiftOut(datapin, clockpin, MSBFIRST, random (2, 255));
  shiftOut(datapin, clockpin, MSBFIRST, random (2, 255));
  shiftOut(datapin, clockpin, MSBFIRST, random (2, 255));
  shiftOut(datapin, clockpin, MSBFIRST, random (2, 255));
  shiftOut(datapin, clockpin, MSBFIRST, random (2, 255));
  digitalWrite(latchpin, HIGH);
  delay(50);
}