#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 *, float *, float *, float *, float *);
int main() {
  float a1, b1, a2, b2, p, q, t, r, s;
  scanf("%f%f%f%f", &a1, &b1, &a2, &b2);
  p = a1 * b2 - a2 * b1;
  q = b2 - b1;
  t = a1 - a2;
  r = t / p;
  s = q / p;
  if (p == 0) {
    printf("INF");
  } else {
    printf("(%.3f,%.3f)", s, r);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
lea    -0x10(%rbp),%rcx
lea    -0x14(%rbp),%r8
call   1040 <scanf@plt>
movss  -0x8(%rbp),%xmm0
movss  -0x14(%rbp),%xmm2
movss  -0x10(%rbp),%xmm1
mulss  -0xc(%rbp),%xmm1
movd   %xmm1,%eax
xor    $0x80000000,%eax
movd   %eax,%xmm1
mulss  %xmm2,%xmm0
addss  %xmm1,%xmm0
movss  %xmm0,-0x18(%rbp)
movss  -0x14(%rbp),%xmm0
subss  -0xc(%rbp),%xmm0
movss  %xmm0,-0x1c(%rbp)
movss  -0x8(%rbp),%xmm0
subss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x20(%rbp)
movss  -0x20(%rbp),%xmm0
divss  -0x18(%rbp),%xmm0
movss  %xmm0,-0x24(%rbp)
movss  -0x1c(%rbp),%xmm0
divss  -0x18(%rbp),%xmm0
movss  %xmm0,-0x28(%rbp)
movss  -0x18(%rbp),%xmm0
xorps  %xmm1,%xmm1
ucomiss %xmm1,%xmm0
jne    11df <main+0xbf>
jp     11df <main+0xbf>
lea    0xe36(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11ff <main+0xdf>
movss  -0x28(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x24(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xe15(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
sub    $0x18,%rsp
lea    0xed5(%rip),%rdi
lea    0x14(%rsp),%rsi
lea    0x10(%rsp),%rdx
lea    0xc(%rsp),%rcx
lea    0x8(%rsp),%r8
call   1040 <scanf@plt>
movss  0x14(%rsp),%xmm1
movss  0x8(%rsp),%xmm0
movss  0xc(%rsp),%xmm2
movss  0x10(%rsp),%xmm4
movaps %xmm4,%xmm5
mulss  %xmm2,%xmm5
movaps %xmm1,%xmm3
mulss  %xmm0,%xmm3
subss  %xmm5,%xmm3
xorps  %xmm5,%xmm5
ucomiss %xmm5,%xmm3
jne    1188 <main+0x68>
jp     1188 <main+0x68>
lea    0xe8a(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
jmp    11ae <main+0x8e>
subss  %xmm4,%xmm0
divss  %xmm3,%xmm0
subss  %xmm2,%xmm1
divss  %xmm3,%xmm1
cvtss2sd %xmm0,%xmm0
cvtss2sd %xmm1,%xmm1
lea    0xe66(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x18,%rsp
ret

LLVM IR (-O0):
@.str = [9 x i8] c"%f%f%f%f\00"
@.str.1 = [4 x i8] c"INF\00"
@.str.2 = [12 x i8] c"(%.3f,%.3f)\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca float
%3 = alloca float
%4 = alloca float
%5 = alloca float
%6 = alloca float
%7 = alloca float
%8 = alloca float
%9 = alloca float
%10 = alloca float
store i32 0, i32* %1
%11 = call i32 @scanf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), float* %2, float* %3, float* %4, float* %5)
%12 = load float, float* %2
%13 = load float, float* %5
%14 = load float, float* %4
%15 = load float, float* %3
%16 = fmul float %14, %15
%17 = fneg float %16
%18 = call float @llvm.fmuladd.f32(float %12, float %13, float %17)
store float %18, float* %6
%19 = load float, float* %5
%20 = load float, float* %3
%21 = fsub float %19, %20
store float %21, float* %7
%22 = load float, float* %2
%23 = load float, float* %4
%24 = fsub float %22, %23
store float %24, float* %8
%25 = load float, float* %8
%26 = load float, float* %6
%27 = fdiv float %25, %26
store float %27, float* %9
%28 = load float, float* %7
%29 = load float, float* %6
%30 = fdiv float %28, %29
store float %30, float* %10
%31 = load float, float* %6
%32 = fcmp oeq float %31, 0.000000e+00
br i1 %32, label %33, label %35
33: ; preds = %0
%34 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
br label %41
35: ; preds = %0
%36 = load float, float* %10
%37 = fpext float %36 to double
%38 = load float, float* %9
%39 = fpext float %38 to double
%40 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.2, i64 0, i64 0), double %37, double %39)
br label %41
41: ; preds = %35, %33
ret i32 0
}

LLVM IR (-O2):
@.str = [9 x i8] c"%f%f%f%f\00"
@.str.1 = [4 x i8] c"INF\00"
@.str.2 = [12 x i8] c"(%.3f,%.3f)\00"
define i32 @main() {
%1 = alloca float
%2 = alloca float
%3 = alloca float
%4 = alloca float
%5 = bitcast float* %1 to i8*
%6 = bitcast float* %2 to i8*
%7 = bitcast float* %3 to i8*
%8 = bitcast float* %4 to i8*
%9 = call i32 @scanf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0), float* %1, float* %2, float* %3, float* %4)
%10 = load float, float* %1
%11 = load float, float* %4
%12 = load float, float* %3
%13 = load float, float* %2
%14 = fneg float %12
%15 = fmul float %13, %14
%16 = call float @llvm.fmuladd.f32(float %10, float %11, float %15)
%17 = fcmp oeq float %16, 0.000000e+00
br i1 %17, label %18, label %20
18: ; preds = %0
%19 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
br label %28
20: ; preds = %0
%21 = fsub float %11, %13
%22 = fdiv float %21, %16
%23 = fsub float %10, %12
%24 = fdiv float %23, %16
%25 = fpext float %22 to double
%26 = fpext float %24 to double
%27 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 x i8]* @.str.2, i64 0, i64 0), double %25, double %26)
br label %28
28: ; preds = %20, %18
ret i32 0
}