#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*/ scanf(char *, char *);
int main() {
  char ch;
  ch = 0;
  scanf("%c", &ch);
  if (ch >= 'A' && ch <= 'Z') {
    printf("Capital Letter");
  } else if (ch >= 'a' && ch <= 'z') {
    printf("Small Letter");
  } else {
    printf("Digit");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movb   $0x0,-0x5(%rbp)
lea    0xec6(%rip),%rdi
lea    -0x5(%rbp),%rsi
call   1040 <scanf@plt>
movsbl -0x5(%rbp),%eax
cmp    $0x41,%eax
jl     116e <main+0x4e>
movsbl -0x5(%rbp),%eax
cmp    $0x5a,%eax
jg     116e <main+0x4e>
lea    0xe9f(%rip),%rdi
call   1030 <printf@plt>
jmp    11aa <main+0x8a>
movsbl -0x5(%rbp),%eax
cmp    $0x61,%eax
jl     1199 <main+0x79>
movsbl -0x5(%rbp),%eax
cmp    $0x7a,%eax
jg     1199 <main+0x79>
lea    0xe83(%rip),%rdi
call   1030 <printf@plt>
jmp    11a5 <main+0x85>
lea    0xe7f(%rip),%rdi
call   1030 <printf@plt>
jmp    11aa <main+0x8a>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
movb   $0x0,0x7(%rsp)
lea    0xed3(%rip),%rdi
lea    0x7(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x7(%rsp),%al
lea    -0x41(%rax),%ecx
add    $0x9f,%al
cmp    $0x1a,%al
lea    0xec9(%rip),%rax
lea    0xecf(%rip),%rdx
cmovb  %rax,%rdx
cmp    $0x1a,%cl
lea    0xea5(%rip),%rdi
cmovae %rdx,%rdi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%c\00"
@.str.1 = [15 x i8] c"Capital Letter\00"
@.str.2 = [13 x i8] c"Small Letter\00"
@.str.3 = [6 x i8] c"Digit\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i8
store i32 0, i32* %1
store i8 0, i8* %2
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %2)
%4 = load i8, i8* %2
%5 = sext i8 %4 to i32
%6 = icmp sge i32 %5, 65
br i1 %6, label %7, label %13
7: ; preds = %0
%8 = load i8, i8* %2
%9 = sext i8 %8 to i32
%10 = icmp sle i32 %9, 90
br i1 %10, label %11, label %13
11: ; preds = %7
%12 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.1, i64 0, i64 0))
br label %26
13: ; preds = %7, %0
%14 = load i8, i8* %2
%15 = sext i8 %14 to i32
%16 = icmp sge i32 %15, 97
br i1 %16, label %17, label %23
17: ; preds = %13
%18 = load i8, i8* %2
%19 = sext i8 %18 to i32
%20 = icmp sle i32 %19, 122
br i1 %20, label %21, label %23
21: ; preds = %17
%22 = call i32 @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0))
br label %25
23: ; preds = %17, %13
%24 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0))
br label %25
25: ; preds = %23, %21
br label %26
26: ; preds = %25, %11
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%c\00"
@.str.1 = [15 x i8] c"Capital Letter\00"
@.str.2 = [13 x i8] c"Small Letter\00"
@.str.3 = [6 x i8] c"Digit\00"
define i32 @main() {
%1 = alloca i8
store i8 0, i8* %1
%2 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %1)
%3 = load i8, i8* %1
%4 = add i8 %3, -65
%5 = icmp ult i8 %4, 26
%6 = add i8 %3, -97
%7 = icmp ult i8 %6, 26
%8 = select i1 %7, i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0)
%9 = select i1 %5, i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.1, i64 0, i64 0), i8* %8
%10 = call i32 @printf(i8* dereferenceable(1) %9)
ret i32 0
}