#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);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  int total;
  scanf("%d", &total);
  for (int col = 1; col <= total; col++) {
    for (int row = 1; row < col; row++) {
      printf("%d ", row);
    }
    printf("%d\n", col);
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movl   $0x1,-0xc(%rbp)
mov    -0xc(%rbp),%eax
cmp    -0x8(%rbp),%eax
jg     119f <main+0x7f>
movl   $0x1,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1182 <main+0x62>
mov    -0x10(%rbp),%esi
lea    0xe94(%rip),%rdi
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1159 <main+0x39>
mov    -0xc(%rbp),%esi
lea    0xe7b(%rip),%rdi
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1146 <main+0x26>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
sub    $0x10,%rsp
lea    0xecc(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1040 <scanf@plt>
cmpl   $0x0,0xc(%rsp)
jle    11af <main+0x8f>
mov    $0x1,%r14d
xor    %r13d,%r13d
lea    0xeae(%rip),%r12
lea    0xeab(%rip),%r15
jmp    117d <main+0x5d>
xchg   %ax,%ax
mov    %r15,%rdi
mov    %r14d,%esi
call   1030 <printf@plt>
lea    0x1(%r14),%eax
add    $0xffffffff,%r13d
cmp    0xc(%rsp),%r14d
mov    %eax,%r14d
jge    11af <main+0x8f>
cmp    $0x2,%r14d
jb     1160 <main+0x40>
mov    $0x1,%ebx
nopl   0x0(%rax,%rax,1)
mov    %r12,%rdi
mov    %ebx,%esi
call   1030 <printf@plt>
lea    (%rbx,%r13,1),%eax
add    $0x1,%eax
mov    %ebx,%ecx
add    $0x1,%ecx
mov    %ecx,%ebx
cmp    $0x1,%eax
jne    1190 <main+0x70>
jmp    1160 <main+0x40>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%d\00"
@.str.1 = [4 x i8] c"%d \00"
@.str.2 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %2)
store i32 1, i32* %3
br label %6
6: ; preds = %24, %0
%7 = load i32, i32* %3
%8 = load i32, i32* %2
%9 = icmp sle i32 %7, %8
br i1 %9, label %10, label %27
10: ; preds = %6
store i32 1, i32* %4
br label %11
11: ; preds = %18, %10
%12 = load i32, i32* %4
%13 = load i32, i32* %3
%14 = icmp slt i32 %12, %13
br i1 %14, label %15, label %21
15: ; preds = %11
%16 = load i32, i32* %4
%17 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %16)
br label %18
18: ; preds = %15
%19 = load i32, i32* %4
%20 = add nsw i32 %19, 1
store i32 %20, i32* %4
br label %11
21: ; preds = %11
%22 = load i32, i32* %3
%23 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %22)
br label %24
24: ; preds = %21
%25 = load i32, i32* %3
%26 = add nsw i32 %25, 1
store i32 %26, i32* %3
br label %6
27: ; preds = %6
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%d\00"
@.str.1 = [4 x i8] c"%d \00"
@.str.2 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32* %1)
%4 = load i32, i32* %1
%5 = icmp slt i32 %4, 1
br i1 %5, label %9, label %6
6: ; preds = %0, %10
%7 = phi i32 [ %12, %10 ], [ 1, %0 ]
%8 = icmp ugt i32 %7, 1
br i1 %8, label %15, label %10
9: ; preds = %10, %0
ret i32 0
10: ; preds = %15, %6
%11 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %7)
%12 = add nuw nsw i32 %7, 1
%13 = load i32, i32* %1
%14 = icmp slt i32 %7, %13
br i1 %14, label %6, label %9
15: ; preds = %6, %15
%16 = phi i32 [ %18, %15 ], [ 1, %6 ]
%17 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %16)
%18 = add nuw nsw i32 %16, 1
%19 = icmp eq i32 %18, %7
br i1 %19, label %10, label %15
}