#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 *, int *);
int main() {
  int nums[4][4];
  int a;
  int b;
  for (a = 0; a < 4; a++) {
    for (b = 0; b < 4; b++) {
      scanf("%d", &nums[a][b]);
    }
  }
  int nums2[4][4];
  for (a = 0; a < 4; a++) {
    for (b = 0; b < 4; b++) {
      nums2[a][b] = nums[b][a];
    }
  }
  for (a = 0; a < 4; a++) {
    for (b = 0; b < 4; b++) {
      printf("%d ", nums2[a][b]);
    }
    printf("\n");
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0xa0,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x54(%rbp)
cmpl   $0x4,-0x54(%rbp)
jge    119b <main+0x7b>
movl   $0x0,-0x58(%rbp)
cmpl   $0x4,-0x58(%rbp)
jge    1188 <main+0x68>
movslq -0x54(%rbp),%rax
lea    -0x50(%rbp),%rsi
shl    $0x4,%rax
add    %rax,%rsi
movslq -0x58(%rbp),%rax
shl    $0x2,%rax
add    %rax,%rsi
lea    0xe8b(%rip),%rdi
call   1040 <scanf@plt>
mov    -0x58(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x58(%rbp)
jmp    114a <main+0x2a>
jmp    118d <main+0x6d>
mov    -0x54(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x54(%rbp)
jmp    1139 <main+0x19>
movl   $0x0,-0x54(%rbp)
cmpl   $0x4,-0x54(%rbp)
jge    120d <main+0xed>
movl   $0x0,-0x58(%rbp)
cmpl   $0x4,-0x58(%rbp)
jge    11fa <main+0xda>
movslq -0x58(%rbp),%rcx
lea    -0x50(%rbp),%rax
shl    $0x4,%rcx
add    %rcx,%rax
movslq -0x54(%rbp),%rcx
mov    (%rax,%rcx,4),%edx
movslq -0x54(%rbp),%rcx
lea    -0xa0(%rbp),%rax
shl    $0x4,%rcx
add    %rcx,%rax
movslq -0x58(%rbp),%rcx
mov    %edx,(%rax,%rcx,4)
mov    -0x58(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x58(%rbp)
jmp    11b3 <main+0x93>
jmp    11ff <main+0xdf>
mov    -0x54(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x54(%rbp)
jmp    11a2 <main+0x82>
movl   $0x0,-0x54(%rbp)
cmpl   $0x4,-0x54(%rbp)
jge    1280 <main+0x160>
movl   $0x0,-0x58(%rbp)
cmpl   $0x4,-0x58(%rbp)
jge    1264 <main+0x144>
movslq -0x54(%rbp),%rcx
lea    -0xa0(%rbp),%rax
shl    $0x4,%rcx
add    %rcx,%rax
movslq -0x58(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xdb4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x58(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x58(%rbp)
jmp    1225 <main+0x105>
lea    0xd9c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x54(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x54(%rbp)
jmp    1214 <main+0xf4>
mov    -0x4(%rbp),%eax
add    $0xa0,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x68,%rsp
lea    0xebb(%rip),%rbx
mov    %rsp,%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x4(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x10(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x14(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x18(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x1c(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x20(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x24(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x28(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x2c(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x30(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x34(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x38(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0x3c(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    0x10(%rsp),%ebp
mov    0x20(%rsp),%r13d
mov    0x30(%rsp),%r12d
mov    (%rsp),%esi
mov    0x4(%rsp),%r15d
mov    0x14(%rsp),%r14d
mov    0x24(%rsp),%eax
mov    %eax,0x40(%rsp)
mov    0x34(%rsp),%eax
mov    %eax,0x44(%rsp)
mov    0x8(%rsp),%eax
mov    %eax,0x48(%rsp)
mov    0x18(%rsp),%eax
mov    %eax,0x4c(%rsp)
mov    0x28(%rsp),%eax
mov    %eax,0x50(%rsp)
mov    0x38(%rsp),%eax
mov    %eax,0x54(%rsp)
mov    0xc(%rsp),%eax
mov    %eax,0x58(%rsp)
mov    0x1c(%rsp),%eax
mov    %eax,0x5c(%rsp)
mov    0x2c(%rsp),%eax
mov    %eax,0x60(%rsp)
mov    0x3c(%rsp),%eax
mov    %eax,0x64(%rsp)
lea    0xd7e(%rip),%rbx
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    %ebp,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    %r13d,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    %r12d,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    %rbx,%rdi
mov    %r15d,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    %r14d,%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    0x40(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    0x44(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    %rbx,%rdi
mov    0x48(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    0x4c(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    0x50(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    0x54(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    %rbx,%rdi
mov    0x58(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    0x5c(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    0x60(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %rbx,%rdi
mov    0x64(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
xor    %eax,%eax
add    $0x68,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
@.str.1 = [4 x i8] c"%d \00"
@.str.2 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [4 x [4 x i32]]
%3 = alloca i32
%4 = alloca i32
%5 = alloca [4 x [4 x i32]]
store i32 0, i32* %1
store i32 0, i32* %3
br label %6
6: ; preds = %25, %0
%7 = load i32, i32* %3
%8 = icmp slt i32 %7, 4
br i1 %8, label %9, label %28
9: ; preds = %6
store i32 0, i32* %4
br label %10
10: ; preds = %21, %9
%11 = load i32, i32* %4
%12 = icmp slt i32 %11, 4
br i1 %12, label %13, label %24
13: ; preds = %10
%14 = load i32, i32* %3
%15 = sext i32 %14 to i64
%16 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %2, i64 0, i64 %15
%17 = load i32, i32* %4
%18 = sext i32 %17 to i64
%19 = getelementptr inbounds [4 x i32], [4 x i32]* %16, i64 0, i64 %18
%20 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %19)
br label %21
21: ; preds = %13
%22 = load i32, i32* %4
%23 = add nsw i32 %22, 1
store i32 %23, i32* %4
br label %10
24: ; preds = %10
br label %25
25: ; preds = %24
%26 = load i32, i32* %3
%27 = add nsw i32 %26, 1
store i32 %27, i32* %3
br label %6
28: ; preds = %6
store i32 0, i32* %3
br label %29
29: ; preds = %54, %28
%30 = load i32, i32* %3
%31 = icmp slt i32 %30, 4
br i1 %31, label %32, label %57
32: ; preds = %29
store i32 0, i32* %4
br label %33
33: ; preds = %50, %32
%34 = load i32, i32* %4
%35 = icmp slt i32 %34, 4
br i1 %35, label %36, label %53
36: ; preds = %33
%37 = load i32, i32* %4
%38 = sext i32 %37 to i64
%39 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %2, i64 0, i64 %38
%40 = load i32, i32* %3
%41 = sext i32 %40 to i64
%42 = getelementptr inbounds [4 x i32], [4 x i32]* %39, i64 0, i64 %41
%43 = load i32, i32* %42
%44 = load i32, i32* %3
%45 = sext i32 %44 to i64
%46 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %5, i64 0, i64 %45
%47 = load i32, i32* %4
%48 = sext i32 %47 to i64
%49 = getelementptr inbounds [4 x i32], [4 x i32]* %46, i64 0, i64 %48
store i32 %43, i32* %49
br label %50
50: ; preds = %36
%51 = load i32, i32* %4
%52 = add nsw i32 %51, 1
store i32 %52, i32* %4
br label %33
53: ; preds = %33
br label %54
54: ; preds = %53
%55 = load i32, i32* %3
%56 = add nsw i32 %55, 1
store i32 %56, i32* %3
br label %29
57: ; preds = %29
store i32 0, i32* %3
br label %58
58: ; preds = %79, %57
%59 = load i32, i32* %3
%60 = icmp slt i32 %59, 4
br i1 %60, label %61, label %82
61: ; preds = %58
store i32 0, i32* %4
br label %62
62: ; preds = %74, %61
%63 = load i32, i32* %4
%64 = icmp slt i32 %63, 4
br i1 %64, label %65, label %77
65: ; preds = %62
%66 = load i32, i32* %3
%67 = sext i32 %66 to i64
%68 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %5, i64 0, i64 %67
%69 = load i32, i32* %4
%70 = sext i32 %69 to i64
%71 = getelementptr inbounds [4 x i32], [4 x i32]* %68, i64 0, i64 %70
%72 = load i32, i32* %71
%73 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %72)
br label %74
74: ; preds = %65
%75 = load i32, i32* %4
%76 = add nsw i32 %75, 1
store i32 %76, i32* %4
br label %62
77: ; preds = %62
%78 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
br label %79
79: ; preds = %77
%80 = load i32, i32* %3
%81 = add nsw i32 %80, 1
store i32 %81, i32* %3
br label %58
82: ; preds = %58
%83 = load i32, i32* %1
ret i32 %83
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [4 x i8] c"%d \00"
define i32 @main() {
%1 = alloca [4 x [4 x i32]]
%2 = bitcast [4 x [4 x i32]]* %1 to i8*
%3 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 0, i64 0
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %3)
%5 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 0, i64 1
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %5)
%7 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 0, i64 2
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %7)
%9 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 0, i64 3
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %9)
%11 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 1, i64 0
%12 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %11)
%13 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 1, i64 1
%14 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %13)
%15 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 1, i64 2
%16 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %15)
%17 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 1, i64 3
%18 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %17)
%19 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 2, i64 0
%20 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %19)
%21 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 2, i64 1
%22 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %21)
%23 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 2, i64 2
%24 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %23)
%25 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 2, i64 3
%26 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %25)
%27 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 3, i64 0
%28 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %27)
%29 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 3, i64 1
%30 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %29)
%31 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 3, i64 2
%32 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %31)
%33 = getelementptr inbounds [4 x [4 x i32]], [4 x [4 x i32]]* %1, i64 0, i64 3, i64 3
%34 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %33)
%35 = load i32, i32* %3
%36 = load i32, i32* %11
%37 = load i32, i32* %19
%38 = load i32, i32* %27
%39 = load i32, i32* %5
%40 = load i32, i32* %13
%41 = load i32, i32* %21
%42 = load i32, i32* %29
%43 = load i32, i32* %7
%44 = load i32, i32* %15
%45 = load i32, i32* %23
%46 = load i32, i32* %31
%47 = load i32, i32* %9
%48 = load i32, i32* %17
%49 = load i32, i32* %25
%50 = load i32, i32* %33
%51 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %35)
%52 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %36)
%53 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %37)
%54 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %38)
%55 = call i32 @putchar(i32 10)
%56 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %39)
%57 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %40)
%58 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %41)
%59 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %42)
%60 = call i32 @putchar(i32 10)
%61 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %43)
%62 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %44)
%63 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %45)
%64 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %46)
%65 = call i32 @putchar(i32 10)
%66 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %47)
%67 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %48)
%68 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %49)
%69 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %50)
%70 = call i32 @putchar(i32 10)
ret i32 0
}