#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 */
scalar_t__ EOF;
double pow(double, double);
int /*<<< orphan*/ printf(char *, double);
scalar_t__ scanf(char *, double *);
int main() {
  double r;
  while (scanf("%lf", &r) != EOF) {
    printf("%.3lf\n", 4.0 / 3.0 * 3.1415927 * pow(r, 3.0));
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x10(%rbp),%rsi
call   1040 <scanf@plt>
mov    0x2e92(%rip),%rcx
cmp    (%rcx),%rax
je     1191 <main+0x61>
movsd  -0x10(%rbp),%xmm0
movsd  0xe9c(%rip),%xmm1
call   1050 <pow@plt>
movaps %xmm0,%xmm1
movsd  0xe84(%rip),%xmm0
mulsd  %xmm1,%xmm0
lea    0xe8d(%rip),%rdi
call   1030 <printf@plt>
jmp    113f <main+0xf>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
lea    0xed1(%rip),%rdi
mov    %rsp,%rsi
call   1040 <scanf@plt>
mov    0x2e9a(%rip),%r12
cmp    (%r12),%rax
je     11a3 <main+0x73>
lea    0xeb9(%rip),%r14
lea    0xeae(%rip),%r15
mov    %rsp,%rbx
cs nopw 0x0(%rax,%rax,1)
nop
movsd  (%rsp),%xmm0
movsd  0xe83(%rip),%xmm1
call   1050 <pow@plt>
mulsd  0xe7e(%rip),%xmm0
mov    %r14,%rdi
call   1030 <printf@plt>
mov    %r15,%rdi
mov    %rbx,%rsi
call   1040 <scanf@plt>
cmp    (%r12),%rax
jne    1170 <main+0x40>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%lf\00"
@EOF = global i64 0
@.str.1 = [7 x i8] c"%.3lf\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca double
store i32 0, i32* %1
br label %3
3: ; preds = %7, %0
%4 = call i64 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %2)
%5 = load i64, i64* @EOF
%6 = icmp ne i64 %4, %5
br i1 %6, label %7, label %12
7: ; preds = %3
%8 = load double, double* %2
%9 = call double @pow(double %8, double 3.000000e+00)
%10 = fmul double 0x4010C1523C548BBA, %9
%11 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), double %10)
br label %3
12: ; preds = %3
ret i32 0
}

LLVM IR (-O2):
@.str = [4 x i8] c"%lf\00"
@EOF = global i64 0
@.str.1 = [7 x i8] c"%.3lf\0A\00"
define i32 @main() {
%1 = alloca double
%2 = bitcast double* %1 to i8*
%3 = call i64 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%4 = load i64, i64* @EOF
%5 = icmp eq i64 %3, %4
br i1 %5, label %14, label %6
6: ; preds = %0, %6
%7 = load double, double* %1
%8 = call double @pow(double %7, double 3.000000e+00)
%9 = fmul double %8, 0x4010C1523C548BBA
%10 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), double %9)
%11 = call i64 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%12 = load i64, i64* @EOF
%13 = icmp eq i64 %11, %12
br i1 %13, label %14, label %6
14: ; preds = %6, %0
ret i32 0
}