#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 *, char);
int /*<<< orphan*/ scanf(char *, char *);
int main() {
  char nome[40];
  int i;
  scanf("%s", nome);
  for (i = 0; i < 4; i++)
    printf("%c", nome[i]);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x40,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x30(%rbp),%rsi
lea    0xec6(%rip),%rdi
call   1040 <scanf@plt>
movl   $0x0,-0x34(%rbp)
cmpl   $0x4,-0x34(%rbp)
jge    1173 <main+0x53>
movslq -0x34(%rbp),%rax
lea    0xea8(%rip),%rdi
movsbl -0x30(%rbp,%rax,1),%esi
call   1030 <printf@plt>
mov    -0x34(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x34(%rbp)
jmp    1146 <main+0x26>
xor    %eax,%eax
add    $0x40,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x30,%rsp
lea    0xed4(%rip),%rdi
mov    %rsp,%rsi
call   1040 <scanf@plt>
movsbl (%rsp),%esi
lea    0xec4(%rip),%rbx
mov    %rbx,%rdi
call   1030 <printf@plt>
movsbl 0x1(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
movsbl 0x2(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
movsbl 0x3(%rsp),%esi
mov    %rbx,%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%s\00"
@.str.1 = [3 x i8] c"%c\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [40 x i8]
%3 = alloca i32
store i32 0, i32* %1
%4 = getelementptr inbounds [40 x i8], [40 x i8]* %2, i64 0, i64 0
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %4)
store i32 0, i32* %3
br label %6
6: ; preds = %15, %0
%7 = load i32, i32* %3
%8 = icmp slt i32 %7, 4
br i1 %8, label %9, label %18
9: ; preds = %6
%10 = load i32, i32* %3
%11 = sext i32 %10 to i64
%12 = getelementptr inbounds [40 x i8], [40 x i8]* %2, i64 0, i64 %11
%13 = load i8, i8* %12
%14 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8 signext %13)
br label %15
15: ; preds = %9
%16 = load i32, i32* %3
%17 = add nsw i32 %16, 1
store i32 %17, i32* %3
br label %6
18: ; preds = %6
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%s\00"
@.str.1 = [3 x i8] c"%c\00"
define i32 @main() {
%1 = alloca [40 x i8]
%2 = getelementptr inbounds [40 x i8], [40 x i8]* %1, i64 0, i64 0
%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 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8 signext %4)
%6 = getelementptr inbounds [40 x i8], [40 x i8]* %1, i64 0, i64 1
%7 = load i8, i8* %6
%8 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8 signext %7)
%9 = getelementptr inbounds [40 x i8], [40 x i8]* %1, i64 0, i64 2
%10 = load i8, i8* %9
%11 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8 signext %10)
%12 = getelementptr inbounds [40 x i8], [40 x i8]* %1, i64 0, i64 3
%13 = load i8, i8* %12
%14 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8 signext %13)
ret i32 0
}