#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 EOF;
int getchar();
int /*<<< orphan*/ putchar(int);
int main(void) {
  int c;
  int nlcount = 3;
  while ((c = getchar()) != EOF) {
    if (c == '\n') {
      ++nlcount;
    } else if (c != ' ' && c != '\t' && c != '\n') {
      nlcount = 0;
    }
    if (nlcount < 3) {
      putchar(c);
    }
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x3,-0xc(%rbp)
mov    $0x0,%al
call   1040 <getchar@plt>
mov    %eax,-0x8(%rbp)
mov    0x2ea1(%rip),%rcx
cmp    (%rcx),%eax
je     11a8 <main+0x88>
cmpl   $0xa,-0x8(%rbp)
jne    1167 <main+0x47>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1191 <main+0x71>
cmpl   $0x20,-0x8(%rbp)
je     118c <main+0x6c>
cmpl   $0x9,-0x8(%rbp)
je     118c <main+0x6c>
cmpl   $0xa,-0x8(%rbp)
je     118c <main+0x6c>
movl   $0x0,-0xc(%rbp)
jmp    1191 <main+0x71>
cmpl   $0x3,-0xc(%rbp)
jge    11a3 <main+0x83>
mov    -0x8(%rbp),%edi
call   1030 <putchar@plt>
jmp    1136 <main+0x16>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r14
push   %rbx
xor    %eax,%eax
call   1040 <getchar@plt>
mov    0x2eb6(%rip),%r14
cmp    (%r14),%eax
jne    113e <main+0x1e>
xor    %eax,%eax
pop    %rbx
pop    %r14
pop    %rbp
ret
mov    $0x3,%ebx
jmp    1165 <main+0x45>
cs nopw 0x0(%rax,%rax,1)
nop
mov    %eax,%edi
call   1030 <putchar@plt>
mov    %ebp,%ebx
xor    %eax,%eax
call   1040 <getchar@plt>
cmp    (%r14),%eax
je     1137 <main+0x17>
cmp    $0x9,%eax
je     117c <main+0x5c>
cmp    $0x20,%eax
je     117c <main+0x5c>
mov    $0x0,%ebp
cmp    $0xa,%eax
jne    1150 <main+0x30>
add    $0x1,%ebx
mov    %ebx,%ebp
cmp    $0x2,%ebx
jle    1150 <main+0x30>
jmp    1159 <main+0x39>

LLVM IR (-O0):
@EOF = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 3, i32* %3
br label %4
4: ; preds = %31, %0
%5 = call i32 (...) @getchar()
store i32 %5, i32* %2
%6 = load i32, i32* @EOF
%7 = icmp ne i32 %5, %6
br i1 %7, label %8, label %32
8: ; preds = %4
%9 = load i32, i32* %2
%10 = icmp eq i32 %9, 10
br i1 %10, label %11, label %14
11: ; preds = %8
%12 = load i32, i32* %3
%13 = add nsw i32 %12, 1
store i32 %13, i32* %3
br label %25
14: ; preds = %8
%15 = load i32, i32* %2
%16 = icmp ne i32 %15, 32
br i1 %16, label %17, label %24
17: ; preds = %14
%18 = load i32, i32* %2
%19 = icmp ne i32 %18, 9
br i1 %19, label %20, label %24
20: ; preds = %17
%21 = load i32, i32* %2
%22 = icmp ne i32 %21, 10
br i1 %22, label %23, label %24
23: ; preds = %20
store i32 0, i32* %3
br label %24
24: ; preds = %23, %20, %17, %14
br label %25
25: ; preds = %24, %11
%26 = load i32, i32* %3
%27 = icmp slt i32 %26, 3
br i1 %27, label %28, label %31
28: ; preds = %25
%29 = load i32, i32* %2
%30 = call i32 @putchar(i32 %29)
br label %31
31: ; preds = %28, %25
br label %4
32: ; preds = %4
ret i32 0
}

LLVM IR (-O2):
@EOF = global i32 0
define i32 @main() {
%1 = tail call i32 (...) @getchar()
%2 = load i32, i32* @EOF
%3 = icmp eq i32 %1, %2
br i1 %3, label %20, label %4
4: ; preds = %0, %15
%5 = phi i32 [ %17, %15 ], [ %1, %0 ]
%6 = phi i32 [ %16, %15 ], [ 3, %0 ]
switch i32 %5, label %12 [
i32 10, label %7
i32 32, label %9
i32 9, label %9
]
7: ; preds = %4
%8 = add nsw i32 %6, 1
br label %9
9: ; preds = %4, %4, %7
%10 = phi i32 [ %8, %7 ], [ %6, %4 ], [ %6, %4 ]
%11 = icmp slt i32 %10, 3
br i1 %11, label %12, label %15
12: ; preds = %4, %9
%13 = phi i32 [ %10, %9 ], [ 0, %4 ]
%14 = tail call i32 @putchar(i32 %5)
br label %15
15: ; preds = %12, %9
%16 = phi i32 [ %13, %12 ], [ %10, %9 ]
%17 = tail call i32 (...) @getchar()
%18 = load i32, i32* @EOF
%19 = icmp eq i32 %17, %18
br i1 %19, label %20, label %4
20: ; preds = %15, %0
ret i32 0
}