Reading and printing an integer in mips

My program is suppose to read an integer and print it back to the user but every time it just prints 268501230 no matter what is entered. Any help would be appreciated.

.data
prompt2: .asciiz "Please enter value: "
array1: .space 40
array2: .space 40
buffer: .space 4
.text

main: 

#Prints the prompt2 string
li $v0, 4
la $a0, prompt2 
syscall 

#reads one integer from user and saves in t0
li $v0, 5
la $t0, buffer
syscall

li $v0, 1       
li $t0, 5       # $integer to print
syscall         

exitProgram:    li $v0, 10  # system call to
    syscall         # terminate program