Cannot print out integer in MIPS Assembly program -

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I am using QTSpim as my MIPS simulator and I find it difficult to find out that user input . So far, my code is: 

  .data prompt: .asciiz "Please enter an integer:" .text main: li $ v0, 4 la $ a0, prompt solicitor $ v0, 5 moves $ s0, $ v0 syscall li $ v0, 5 steps $ s1, $ v0 syscall li $ v0, 5 steps $ s2, $ v0 syscall jal order 3 li $ v0, move $ a0, $ s0 syscall li $ v0 , 10 Syscall Swap: Take $ T, Move $ a0 moves $ a0, $ a1 move $ a1, $ t0 jr $ ra Swap 1: $ $ move, $ a1 move $ a1, $ a2 moves $ a2, $ t0 Jr $ ra order 3: bgt $ a0, $ a1, swap bgt $ a1, $ a2, swap 1 bgt $ a0, $ a1, swap jr $ ra   
 Try to print the first integer So I, so it prints a 5 out who should do it. I do not know why this is happening if someone can point out the flaw in my code which is great.  
 Thank you.  
  
 
 
 before you  syscall  the result of  syscall  Trying to use:  
  li $ v0, 5 $ S0, $ v0 syscall   
 should be taken:  < Pre>  li $ v0, 5 syscall $ s0 moves, $ v0   
 for the other two  read_int  syscalls too.  
 Still the fact that your  order3  routing is being checked / changed  $ a0 .. $ a2 , while your number is  $ s0 .. $ s2  is in.

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