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, #1
8    ldr w10, [x8, x9, lsl #2]
9    add x9, x9, #1
10    ldr w12, [x8, x9, lsl #2]
11    add w10, w10, w12
12    sub sp, sp, #16
13    str x10, [sp]
14    adrp x0, fmt@PAGE
15    add x0, x0, fmt@PAGEOFF
16    bl _printf
17    add sp, sp, #16
18    ldp x29, x30, [sp], #32
19    mov w0, #0
20    ret
21.section __DATA,__data
22.align 2
23arr: .long 10, 20, 30, 40
24.section __TEXT,__cstring
25fmt: .asciz "%d\n"