#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int cifra(int);
int /*<<< orphan*/ printf(char *, ...);
scalar_t__ scanf(char *, int *);
int main() {
  int n;
  while ((scanf("%d", &n)) && (n != 0)) {
    printf("\n %d", cifra(n));
    printf("\n");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xebc(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
mov    %rax,%rcx
xor    %eax,%eax
cmp    $0x0,%rcx
mov    %al,-0x9(%rbp)
je     116b <main+0x3b>
cmpl   $0x0,-0x8(%rbp)
setne  %al
mov    %al,-0x9(%rbp)
mov    -0x9(%rbp),%al
test   $0x1,%al
jne    117b <main+0x4b>
jmp    11a6 <main+0x76>
mov    -0x8(%rbp),%edi
call   1030 <cifra@plt>
mov    %eax,%esi
lea    0xe74(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xe6b(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
jmp    113f <main+0xf>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x10,%rsp
lea    0xeb2(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1060 <scanf@plt>
test   %rax,%rax
je     11b3 <main+0x73>
mov    0xc(%rsp),%edi
test   %edi,%edi
je     11b3 <main+0x73>
lea    0xe92(%rip),%r14
lea    0xe8d(%rip),%r15
lea    0xc(%rsp),%rbx
nopw   0x0(%rax,%rax,1)
call   1040 <cifra@plt>
mov    %r14,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1050 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    %r15,%rdi
mov    %rbx,%rsi
call   1060 <scanf@plt>
test   %rax,%rax
je     11b3 <main+0x73>
mov    0xc(%rsp),%edi
test   %edi,%edi
jne    1180 <main+0x40>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
@.str.1 = [5 x i8] c"\0A %d\00"
@.str.2 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
br label %3
3: ; preds = %11, %0
%4 = call i64 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
%5 = icmp ne i64 %4, 0
br i1 %5, label %6, label %9
6: ; preds = %3
%7 = load i32, i32* %2
%8 = icmp ne i32 %7, 0
br label %9
9: ; preds = %6, %3
%10 = phi i1 [ false, %3 ], [ %8, %6 ]
br i1 %10, label %11, label %16
11: ; preds = %9
%12 = load i32, i32* %2
%13 = call i32 @cifra(i32 %12)
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32 %13)
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
br label %3
16: ; preds = %9
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [5 x i8] c"\0A %d\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = call i64 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%4 = icmp ne i64 %3, 0
%5 = load i32, i32* %1
%6 = icmp ne i32 %5, 0
%7 = select i1 %4, i1 %6, i1 false
br i1 %7, label %8, label %18
8: ; preds = %0, %8
%9 = phi i32 [ %15, %8 ], [ %5, %0 ]
%10 = call i32 @cifra(i32 %9)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32 %10)
%12 = call i32 @putchar(i32 10)
%13 = call i64 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%14 = icmp ne i64 %13, 0
%15 = load i32, i32* %1
%16 = icmp ne i32 %15, 0
%17 = select i1 %14, i1 %16, i1 false
br i1 %17, label %8, label %18
18: ; preds = %8, %0
ret i32 0
}