#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 /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ putchar(char);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int n = 0;
  int i = 0;
  int j = 0;
  printf("请输入一个整数: ");
  scanf("%d", &n);
  for (i = 0; i < n / 10; i++) {
    for (j = 1; j < 10; j++) {
      printf("%d", j);
    }
    printf("%d", 0);
  }
  for (i = 1; i <= n % 10; i++) {
    printf("%d", i);
  }
  putchar('\n');
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
lea    0xea5(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xeaf(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
movl   $0x0,-0xc(%rbp)
mov    -0xc(%rbp),%eax
mov    %eax,-0x14(%rbp)
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %eax,%ecx
mov    -0x14(%rbp),%eax
cmp    %ecx,%eax
jge    11e5 <main+0xb5>
movl   $0x1,-0x10(%rbp)
cmpl   $0xa,-0x10(%rbp)
jge    11c7 <main+0x97>
mov    -0x10(%rbp),%esi
lea    0xe66(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    119e <main+0x6e>
lea    0xe4a(%rip),%rdi
xor    %esi,%esi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1179 <main+0x49>
movl   $0x1,-0xc(%rbp)
mov    -0xc(%rbp),%eax
mov    %eax,-0x18(%rbp)
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    -0x18(%rbp),%eax
cmp    %edx,%eax
jg     1227 <main+0xf7>
mov    -0xc(%rbp),%esi
lea    0xe06(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    11ec <main+0xbc>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
movl   $0x0,0x4(%rsp)
lea    0xebe(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec8(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%eax
cmp    $0xa,%eax
jl     1227 <main+0xf7>
lea    0xeaa(%rip),%rbx
xor    %ebp,%ebp
mov    %rbx,%rdi
mov    $0x1,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x2,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x3,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x4,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x5,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x6,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x7,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x8,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    $0x9,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
xor    %esi,%esi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%ebp
movslq 0x4(%rsp),%rax
imul   $0x66666667,%rax,%rcx
mov    %rcx,%rdx
shr    $0x3f,%rdx
sar    $0x22,%rcx
add    %edx,%ecx
cmp    %ecx,%ebp
jl     1170 <main+0x40>
cltq
imul   $0x66666667,%rax,%rcx
mov    %rcx,%rdx
shr    $0x3f,%rdx
sar    $0x22,%rcx
add    %edx,%ecx
add    %ecx,%ecx
lea    (%rcx,%rcx,4),%ecx
sub    %ecx,%eax
test   %eax,%eax
jle    1293 <main+0x163>
lea    0xdc9(%rip),%rbx
xor    %ebp,%ebp
cs nopw 0x0(%rax,%rax,1)
nopl   0x0(%rax,%rax,1)
add    $0x1,%ebp
mov    %rbx,%rdi
mov    %ebp,%esi
xor    %eax,%eax
call   1040 <printf@plt>
movslq 0x4(%rsp),%rax
imul   $0x66666667,%rax,%rcx
mov    %rcx,%rdx
shr    $0x3f,%rdx
sar    $0x22,%rcx
add    %edx,%ecx
add    %ecx,%ecx
lea    (%rcx,%rcx,4),%ecx
sub    %ecx,%eax
cmp    %eax,%ebp
jl     1260 <main+0x130>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [24 x i8] c"\E8\AF\B7\E8\BE\93\E5\85\A5\E4\B8\80\E4\B8\AA\E6\95\B4\E6\95\B0: \00"
@.str.1 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %2
store i32 0, i32* %3
store i32 0, i32* %4
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
store i32 0, i32* %3
br label %7
7: ; preds = %24, %0
%8 = load i32, i32* %3
%9 = load i32, i32* %2
%10 = sdiv i32 %9, 10
%11 = icmp slt i32 %8, %10
br i1 %11, label %12, label %27
12: ; preds = %7
store i32 1, i32* %4
br label %13
13: ; preds = %19, %12
%14 = load i32, i32* %4
%15 = icmp slt i32 %14, 10
br i1 %15, label %16, label %22
16: ; preds = %13
%17 = load i32, i32* %4
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %17)
br label %19
19: ; preds = %16
%20 = load i32, i32* %4
%21 = add nsw i32 %20, 1
store i32 %21, i32* %4
br label %13
22: ; preds = %13
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 0)
br label %24
24: ; preds = %22
%25 = load i32, i32* %3
%26 = add nsw i32 %25, 1
store i32 %26, i32* %3
br label %7
27: ; preds = %7
store i32 1, i32* %3
br label %28
28: ; preds = %36, %27
%29 = load i32, i32* %3
%30 = load i32, i32* %2
%31 = srem i32 %30, 10
%32 = icmp sle i32 %29, %31
br i1 %32, label %33, label %39
33: ; preds = %28
%34 = load i32, i32* %3
%35 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %34)
br label %36
36: ; preds = %33
%37 = load i32, i32* %3
%38 = add nsw i32 %37, 1
store i32 %38, i32* %3
br label %28
39: ; preds = %28
%40 = call i32 @putchar(i8 signext 10)
ret i32 0
}

LLVM IR (-O2):
@.str = [24 x i8] c"\E8\AF\B7\E8\BE\93\E5\85\A5\E4\B8\80\E4\B8\AA\E6\95\B4\E6\95\B0: \00"
@.str.1 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
store i32 0, i32* %1
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%5 = load i32, i32* %1
%6 = icmp sgt i32 %5, 9
br i1 %6, label %7, label %23
7: ; preds = %0, %7
%8 = phi i32 [ %19, %7 ], [ 0, %0 ]
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 1)
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 2)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 3)
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 4)
%13 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 5)
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 6)
%15 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 7)
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 8)
%17 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 9)
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 0)
%19 = add nuw nsw i32 %8, 1
%20 = load i32, i32* %1
%21 = sdiv i32 %20, 10
%22 = icmp slt i32 %19, %21
br i1 %22, label %7, label %23
23: ; preds = %7, %0
%24 = phi i32 [ %5, %0 ], [ %20, %7 ]
%25 = srem i32 %24, 10
%26 = icmp slt i32 %25, 1
br i1 %26, label %34, label %27
27: ; preds = %23, %27
%28 = phi i32 [ %30, %27 ], [ 1, %23 ]
%29 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %28)
%30 = add nuw nsw i32 %28, 1
%31 = load i32, i32* %1
%32 = srem i32 %31, 10
%33 = icmp slt i32 %28, %32
br i1 %33, label %27, label %34
34: ; preds = %27, %23
%35 = call i32 @putchar(i8 signext 10)
ret i32 0
}