What does this Assembly snippet output?

1.global _main
2.align 2
3_main:
4    stp x29, x30, [sp, #-32]!
5    adrp x8, arr@PAGE
6    add x8, x8, arr@PAGEOFF
7    mov x9, #2
8    ldrb w10, [x8, x9]
9    sub sp, sp, #16
10    str x10, [sp]
11    adrp x0, fmt@PAGE
12    add x0, x0, fmt@PAGEOFF
13    bl _printf
14    add sp, sp, #16
15    ldp x29, x30, [sp], #32
16    mov w0, #0
17    ret
18.section __DATA,__data
19arr: .byte 5, 10, 15, 20
20.section __TEXT,__cstring
21fmt: .asciz "%d\n"