Serial.print("Sensor 1:");
Serial.println(analogRead(0));
...
If you want the three numbers to appear on one line, do println for the last number. That println prints info and switches to a new line.
Serial.print("Sensor 1:");
Serial.println(analogRead(0));
...
If you want the three numbers to appear on one line, do println for the last number. That println prints info and switches to a new line.