#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;
  scanf("%f %f %f %f", &a1, &b1, &a2, &b2);
  if ((a1 * b2 - a2 * b1) == 0)
    printf("INF");
  else {
    float a = (a1 - a2) / (a1 * b2 - a2 * b1);
    float b = (b2 - b1) / (a1 * b2 - a2 * b1);
    printf("(%.3f,%.3f)", a, b);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%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
xorps  %xmm1,%xmm1
ucomiss %xmm1,%xmm0
jne    1199 <main+0x79>
jp     1199 <main+0x79>
lea    0xe7f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1231 <main+0x111>
movss  -0x8(%rbp),%xmm0
subss  -0x10(%rbp),%xmm0
movss  -0x8(%rbp),%xmm1
movss  -0x14(%rbp),%xmm3
movss  -0x10(%rbp),%xmm2
mulss  -0xc(%rbp),%xmm2
movd   %xmm2,%eax
xor    $0x80000000,%eax
movd   %eax,%xmm2
mulss  %xmm3,%xmm1
addss  %xmm2,%xmm1
divss  %xmm1,%xmm0
movss  %xmm0,-0x18(%rbp)
movss  -0x14(%rbp),%xmm0
subss  -0xc(%rbp),%xmm0
movss  -0x8(%rbp),%xmm1
movss  -0x14(%rbp),%xmm3
movss  -0x10(%rbp),%xmm2
mulss  -0xc(%rbp),%xmm2
movd   %xmm2,%eax
xor    $0x80000000,%eax
movd   %eax,%xmm2
mulss  %xmm3,%xmm1
addss  %xmm2,%xmm1
divss  %xmm1,%xmm0
movss  %xmm0,-0x1c(%rbp)
movss  -0x18(%rbp),%xmm0
cvtss2sd %xmm0,%xmm0
movss  -0x1c(%rbp),%xmm1
cvtss2sd %xmm1,%xmm1
lea    0xde6(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%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),%xmm0
movss  0x8(%rsp),%xmm1
movss  0xc(%rsp),%xmm4
movss  0x10(%rsp),%xmm2
movaps %xmm2,%xmm5
mulss  %xmm4,%xmm5
movaps %xmm0,%xmm3
mulss  %xmm1,%xmm3
subss  %xmm5,%xmm3
xorps  %xmm5,%xmm5
ucomiss %xmm5,%xmm3
jne    1188 <main+0x68>
jp     1188 <main+0x68>
lea    0xe8d(%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    0xe69(%rip),%rdi
mov    $0x2,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x18,%rsp
ret

LLVM IR (-O0):
@.str = [12 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
store i32 0, i32* %1
%8 = call i32 @scanf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str, i64 0, i64 0), float* %2, float* %3, float* %4, float* %5)
%9 = load float, float* %2
%10 = load float, float* %5
%11 = load float, float* %4
%12 = load float, float* %3
%13 = fmul float %11, %12
%14 = fneg float %13
%15 = call float @llvm.fmuladd.f32(float %9, float %10, float %14)
%16 = fcmp oeq float %15, 0.000000e+00
br i1 %16, label %17, label %19
17: ; preds = %0
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
br label %47
19: ; preds = %0
%20 = load float, float* %2
%21 = load float, float* %4
%22 = fsub float %20, %21
%23 = load float, float* %2
%24 = load float, float* %5
%25 = load float, float* %4
%26 = load float, float* %3
%27 = fmul float %25, %26
%28 = fneg float %27
%29 = call float @llvm.fmuladd.f32(float %23, float %24, float %28)
%30 = fdiv float %22, %29
store float %30, float* %6
%31 = load float, float* %5
%32 = load float, float* %3
%33 = fsub float %31, %32
%34 = load float, float* %2
%35 = load float, float* %5
%36 = load float, float* %4
%37 = load float, float* %3
%38 = fmul float %36, %37
%39 = fneg float %38
%40 = call float @llvm.fmuladd.f32(float %34, float %35, float %39)
%41 = fdiv float %33, %40
store float %41, float* %7
%42 = load float, float* %6
%43 = fpext float %42 to double
%44 = load float, float* %7
%45 = fpext float %44 to double
%46 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.2, i64 0, i64 0), double %43, double %45)
br label %47
47: ; preds = %19, %17
ret i32 0
}

LLVM IR (-O2):
@.str = [12 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 ([12 x i8], [12 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 %10, %12
%22 = fdiv float %21, %16
%23 = fsub float %11, %13
%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
}