Fatal error: Uncaught TypeError: Unsupported operand types: string + int in /in/I0Q98:5
Stack trace:
#0 {main}
thrown in /in/I0Q98 on line 5
Process exited with code 255.
Warning: A non-numeric value encountered in /in/I0Q98 on line 5
10
Warning: A non-numeric value encountered in /in/I0Q98 on line 6
20
Warning: A non-numeric value encountered in /in/I0Q98 on line 7
0
Warning: A non-numeric value encountered in /in/I0Q98 on line 9
0