; LLVM IR from DionysiosB/CodeForces :: 0400-0499 (468A-24Game)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %5 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  %6 = load i64, ptr %2, align 8, !tbaa !5
  %7 = icmp slt i64 %6, 4
  br i1 %7, label %8, label %10

8:                                                ; preds = %0
  %9 = call i32 @puts(ptr noundef @.str.1)
  br label %61

10:                                               ; preds = %0
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = srem i64 %11, 2
  %13 = icmp eq i64 %12, 0
  br i1 %13, label %14, label %34

14:                                               ; preds = %10
  %15 = call i32 @puts(ptr noundef @.str.2)
  %16 = call i32 @puts(ptr noundef @.str.3)
  %17 = call i32 @puts(ptr noundef @.str.4)
  %18 = call i32 @puts(ptr noundef @.str.5)
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  store i64 6, ptr %3, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %30, %14
  %20 = load i64, ptr %3, align 8, !tbaa !5
  %21 = load i64, ptr %2, align 8, !tbaa !5
  %22 = icmp sle i64 %20, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %33

24:                                               ; preds = %19
  %25 = load i64, ptr %3, align 8, !tbaa !5
  %26 = load i64, ptr %3, align 8, !tbaa !5
  %27 = sub nsw i64 %26, 1
  %28 = call i32 (ptr, ...) @printf(ptr noundef @.str.6, i64 noundef %25, i64 noundef %27)
  %29 = call i32 @puts(ptr noundef @.str.7)
  br label %30

30:                                               ; preds = %24
  %31 = load i64, ptr %3, align 8, !tbaa !5
  %32 = add nsw i64 %31, 2
  store i64 %32, ptr %3, align 8, !tbaa !5
  br label %19, !llvm.loop !9

33:                                               ; preds = %23
  br label %60

34:                                               ; preds = %10
  %35 = load i64, ptr %2, align 8, !tbaa !5
  %36 = srem i64 %35, 2
  %37 = icmp eq i64 %36, 1
  br i1 %37, label %38, label %59

38:                                               ; preds = %34
  %39 = call i32 @puts(ptr noundef @.str.2)
  %40 = call i32 @puts(ptr noundef @.str.8)
  %41 = call i32 @puts(ptr noundef @.str.9)
  %42 = call i32 @puts(ptr noundef @.str.10)
  %43 = call i32 @puts(ptr noundef @.str.11)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 7, ptr %4, align 8, !tbaa !5
  br label %44

44:                                               ; preds = %55, %38
  %45 = load i64, ptr %4, align 8, !tbaa !5
  %46 = load i64, ptr %2, align 8, !tbaa !5
  %47 = icmp sle i64 %45, %46
  br i1 %47, label %49, label %48

48:                                               ; preds = %44
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %58

49:                                               ; preds = %44
  %50 = load i64, ptr %4, align 8, !tbaa !5
  %51 = load i64, ptr %4, align 8, !tbaa !5
  %52 = sub nsw i64 %51, 1
  %53 = call i32 (ptr, ...) @printf(ptr noundef @.str.6, i64 noundef %50, i64 noundef %52)
  %54 = call i32 @puts(ptr noundef @.str.7)
  br label %55

55:                                               ; preds = %49
  %56 = load i64, ptr %4, align 8, !tbaa !5
  %57 = add nsw i64 %56, 2
  store i64 %57, ptr %4, align 8, !tbaa !5
  br label %44, !llvm.loop !11

58:                                               ; preds = %48
  br label %59

59:                                               ; preds = %58, %34
  br label %60

60:                                               ; preds = %59, %33
  br label %61

61:                                               ; preds = %60, %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret i32 0
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

declare i32 @puts(ptr noundef) #2

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@.str = external hidden unnamed_addr constant [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.5 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [15 x i8], align 1
@.str.7 = external hidden unnamed_addr constant [12 x i8], align 1
@.str.8 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.9 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.10 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.11 = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %2 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %3 = load i64, ptr %1, align 8, !tbaa !5
  %4 = icmp slt i64 %3, 4
  br i1 %4, label %5, label %7

5:                                                ; preds = %0
  %6 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %.loopexit

7:                                                ; preds = %0
  %8 = and i64 %3, 1
  %9 = icmp eq i64 %8, 0
  %10 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  br i1 %9, label %11, label %21

11:                                               ; preds = %7
  %12 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.3)
  %13 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.4)
  %14 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.5)
  %15 = load i64, ptr %1, align 8, !tbaa !5
  %.not1115 = icmp slt i64 %15, 6
  br i1 %.not1115, label %.loopexit, label %.lr.ph17

.lr.ph17:                                         ; preds = %11, %.lr.ph17
  %.0816 = phi i64 [ %19, %.lr.ph17 ], [ 6, %11 ]
  %16 = add nsw i64 %.0816, -1
  %17 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6, i64 noundef %.0816, i64 noundef %16)
  %18 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.7)
  %19 = add nuw nsw i64 %.0816, 2
  %20 = load i64, ptr %1, align 8, !tbaa !5
  %.not11 = icmp sgt i64 %19, %20
  br i1 %.not11, label %.loopexit, label %.lr.ph17, !llvm.loop !9

21:                                               ; preds = %7
  %22 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.8)
  %23 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.9)
  %24 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.10)
  %25 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.11)
  %26 = load i64, ptr %1, align 8, !tbaa !5
  %.not13 = icmp slt i64 %26, 7
  br i1 %.not13, label %.loopexit, label %.lr.ph

.lr.ph:                                           ; preds = %21, %.lr.ph
  %.014 = phi i64 [ %30, %.lr.ph ], [ 7, %21 ]
  %27 = add nsw i64 %.014, -1
  %28 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.6, i64 noundef %.014, i64 noundef %27)
  %29 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.7)
  %30 = add nuw nsw i64 %.014, 2
  %31 = load i64, ptr %1, align 8, !tbaa !5
  %.not = icmp sgt i64 %30, %31
  br i1 %.not, label %.loopexit, label %.lr.ph, !llvm.loop !11

.loopexit:                                        ; preds = %.lr.ph, %.lr.ph17, %21, %11, %5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #3
  ret i32 0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

attributes #0 = { mustprogress nofree norecurse nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass