#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 *, float);
int /*<<< orphan*/ scanf(char *, float *);
int main(void) {
  int i = 1;
  float a, sum = 0;
  do {
    scanf("%f", &a);
    sum += a;
    i++;
  } while (i <= 12);
  printf("$%.2f", sum / 12);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x1,-0x8(%rbp)
xorps  %xmm0,%xmm0
movss  %xmm0,-0x10(%rbp)
lea    0xebf(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1040 <scanf@plt>
movss  -0xc(%rbp),%xmm0
addss  -0x10(%rbp),%xmm0
movss  %xmm0,-0x10(%rbp)
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
cmpl   $0xc,-0x8(%rbp)
jle    113e <main+0x1e>
movss  -0x10(%rbp),%xmm0
movss  0xe83(%rip),%xmm1
divss  %xmm1,%xmm0
lea    0xe7f(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
lea    0xed9(%rip),%rbx
lea    0x4(%rsp),%r14
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
xorps  %xmm0,%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
movss  %xmm0,(%rsp)
mov    %rbx,%rdi
mov    %r14,%rsi
call   1040 <scanf@plt>
movss  (%rsp),%xmm0
addss  0x4(%rsp),%xmm0
divss  0xd8b(%rip),%xmm0
lea    0xd8b(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%f\00"
@.str.1 = [6 x i8] c"$%.2f\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca float
%4 = alloca float
store i32 0, i32* %1
store i32 1, i32* %2
store float 0.000000e+00, float* %4
br label %5
5: ; preds = %12, %0
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %3)
%7 = load float, float* %3
%8 = load float, float* %4
%9 = fadd float %8, %7
store float %9, float* %4
%10 = load i32, i32* %2
%11 = add nsw i32 %10, 1
store i32 %11, i32* %2
br label %12
12: ; preds = %5
%13 = load i32, i32* %2
%14 = icmp sle i32 %13, 12
br i1 %14, label %5, label %15
15: ; preds = %12
%16 = load float, float* %4
%17 = fdiv float %16, 1.200000e+01
%18 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), float %17)
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%f\00"
@.str.1 = [6 x i8] c"$%.2f\00"
define i32 @main() {
%1 = alloca float
%2 = bitcast float* %1 to i8*
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%4 = load float, float* %1
%5 = fadd float %4, 0.000000e+00
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%7 = load float, float* %1
%8 = fadd float %5, %7
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%10 = load float, float* %1
%11 = fadd float %8, %10
%12 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%13 = load float, float* %1
%14 = fadd float %11, %13
%15 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%16 = load float, float* %1
%17 = fadd float %14, %16
%18 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%19 = load float, float* %1
%20 = fadd float %17, %19
%21 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%22 = load float, float* %1
%23 = fadd float %20, %22
%24 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%25 = load float, float* %1
%26 = fadd float %23, %25
%27 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%28 = load float, float* %1
%29 = fadd float %26, %28
%30 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%31 = load float, float* %1
%32 = fadd float %29, %31
%33 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%34 = load float, float* %1
%35 = fadd float %32, %34
%36 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), float* %1)
%37 = load float, float* %1
%38 = fadd float %35, %37
%39 = fdiv float %38, 1.200000e+01
%40 = call i32 @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), float %39)
ret i32 0
}