#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 *, double);
int /*<<< orphan*/ scanf(char *, double *);
int main() {
  double sum;
  double tmp;
  int i = 0;
  while (i < 12) {
    scanf("%lf", &tmp);
    sum += tmp;
    i++;
  }
  sum = sum / 12;
  printf("$%.2f\n", sum);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x1c(%rbp)
cmpl   $0xc,-0x1c(%rbp)
jge    116d <main+0x4d>
lea    0xec1(%rip),%rdi
lea    -0x18(%rbp),%rsi
call   1040 <scanf@plt>
movsd  -0x18(%rbp),%xmm0
addsd  -0x10(%rbp),%xmm0
movsd  %xmm0,-0x10(%rbp)
mov    -0x1c(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x1c(%rbp)
jmp    1136 <main+0x16>
movsd  -0x10(%rbp),%xmm0
movsd  0xe86(%rip),%xmm1
divsd  %xmm1,%xmm0
movsd  %xmm0,-0x10(%rbp)
movsd  -0x10(%rbp),%xmm0
lea    0xe7d(%rip),%rdi
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
lea    0xedd(%rip),%rbx
mov    %rsp,%r14
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
lea    0xe53(%rip),%rdi
movsd  0xe3f(%rip),%xmm0
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [4 x i8] c"%lf\00"
@.str.1 = [7 x i8] c"$%.2f\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca double
%3 = alloca double
%4 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %4
br label %5
5: ; preds = %8, %0
%6 = load i32, i32* %4
%7 = icmp slt i32 %6, 12
br i1 %7, label %8, label %15
8: ; preds = %5
%9 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %3)
%10 = load double, double* %3
%11 = load double, double* %2
%12 = fadd double %11, %10
store double %12, double* %2
%13 = load i32, i32* %4
%14 = add nsw i32 %13, 1
store i32 %14, i32* %4
br label %5
15: ; preds = %5
%16 = load double, double* %2
%17 = fdiv double %16, 1.200000e+01
store double %17, double* %2
%18 = load double, double* %2
%19 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), double %18)
%20 = load i32, i32* %1
ret i32 %20
}

LLVM IR (-O2):
@.str = [4 x i8] c"%lf\00"
@.str.1 = [7 x i8] c"$%.2f\0A\00"
define i32 @main() {
%1 = alloca double
%2 = bitcast double* %1 to i8*
%3 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%4 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%5 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%6 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%7 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%8 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%9 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%10 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%11 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%12 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%13 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%14 = call i32 @scanf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i64 0, i64 0), double* %1)
%15 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), double 0x7FF8000000000000)
ret i32 0
}