; LLVM IR from DionysiosB/CodeForces :: 2050B-Transfusion (main)

; 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 [4 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

; 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
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %10 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %11

11:                                               ; preds = %70, %0
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %13 = add nsw i64 %12, -1
  store i64 %13, ptr %2, align 8, !tbaa !5
  %14 = icmp ne i64 %12, 0
  br i1 %14, label %15, label %75

15:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %16 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 0, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 0, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 0, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 0, ptr %8, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %49, %15
  %18 = load i64, ptr %8, align 8, !tbaa !5
  %19 = load i64, ptr %3, align 8, !tbaa !5
  %20 = icmp slt i64 %18, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %52

22:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %9)
  %24 = load i64, ptr %8, align 8, !tbaa !5
  %25 = srem i64 %24, 2
  %26 = load i64, ptr %9, align 8, !tbaa !5
  %27 = mul nsw i64 %25, %26
  %28 = load i64, ptr %4, align 8, !tbaa !9
  %29 = add nsw i64 %28, %27
  store i64 %29, ptr %4, align 8, !tbaa !9
  %30 = load i64, ptr %8, align 8, !tbaa !5
  %31 = srem i64 %30, 2
  %32 = icmp eq i64 %31, 0
  %33 = zext i1 %32 to i64
  %34 = load i64, ptr %9, align 8, !tbaa !5
  %35 = mul nsw i64 %33, %34
  %36 = load i64, ptr %6, align 8, !tbaa !9
  %37 = add nsw i64 %36, %35
  store i64 %37, ptr %6, align 8, !tbaa !9
  %38 = load i64, ptr %8, align 8, !tbaa !5
  %39 = srem i64 %38, 2
  %40 = icmp ne i64 %39, 0
  br i1 %40, label %41, label %44

41:                                               ; preds = %22
  %42 = load i64, ptr %5, align 8, !tbaa !9
  %43 = add nsw i64 %42, 1
  store i64 %43, ptr %5, align 8, !tbaa !9
  br label %47

44:                                               ; preds = %22
  %45 = load i64, ptr %7, align 8, !tbaa !9
  %46 = add nsw i64 %45, 1
  store i64 %46, ptr %7, align 8, !tbaa !9
  br label %47

47:                                               ; preds = %44, %41
  %48 = phi ptr [ %5, %41 ], [ %7, %44 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %49

49:                                               ; preds = %47
  %50 = load i64, ptr %8, align 8, !tbaa !5
  %51 = add nsw i64 %50, 1
  store i64 %51, ptr %8, align 8, !tbaa !5
  br label %17, !llvm.loop !11

52:                                               ; preds = %21
  %53 = load i64, ptr %4, align 8, !tbaa !9
  %54 = load i64, ptr %5, align 8, !tbaa !9
  %55 = srem i64 %53, %54
  %56 = icmp ne i64 %55, 0
  br i1 %56, label %70, label %57

57:                                               ; preds = %52
  %58 = load i64, ptr %6, align 8, !tbaa !9
  %59 = load i64, ptr %7, align 8, !tbaa !9
  %60 = srem i64 %58, %59
  %61 = icmp ne i64 %60, 0
  br i1 %61, label %70, label %62

62:                                               ; preds = %57
  %63 = load i64, ptr %4, align 8, !tbaa !9
  %64 = load i64, ptr %7, align 8, !tbaa !9
  %65 = mul nsw i64 %63, %64
  %66 = load i64, ptr %6, align 8, !tbaa !9
  %67 = load i64, ptr %5, align 8, !tbaa !9
  %68 = mul nsw i64 %66, %67
  %69 = icmp ne i64 %65, %68
  br label %70

70:                                               ; preds = %62, %57, %52
  %71 = phi i1 [ true, %57 ], [ true, %52 ], [ %69, %62 ]
  %72 = zext i1 %71 to i64
  %73 = select i1 %71, ptr @.str.1, ptr @.str.2
  %74 = call i32 @puts(ptr noundef %73)
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  br label %11, !llvm.loop !13

75:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %76 = load i32, ptr %1, align 4
  ret i32 %76
}

; 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

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

declare i32 @puts(ptr noundef) #2

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 = !{!10, !10, i64 0}
!10 = !{!"long long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}


; 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 [4 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

; Function Attrs: mustprogress nofree norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #3
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %5 = load i64, ptr %1, align 8, !tbaa !5
  %6 = add nsw i64 %5, -1
  store i64 %6, ptr %1, align 8, !tbaa !5
  %.not35 = icmp eq i64 %5, 0
  br i1 %.not35, label %._crit_edge38, label %.lr.ph37

.lr.ph37:                                         ; preds = %0, %28
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %9 = icmp sgt i64 %8, 0
  br i1 %9, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph37
  %.022.lcssa = phi i64 [ 0, %.lr.ph37 ], [ %15, %.lr.ph ]
  %.020.lcssa = phi i64 [ 0, %.lr.ph37 ], [ %.121, %.lr.ph ]
  %.019.lcssa = phi i64 [ 0, %.lr.ph37 ], [ %18, %.lr.ph ]
  %.018.lcssa = phi i64 [ 0, %.lr.ph37 ], [ %.1, %.lr.ph ]
  %10 = srem i64 %.022.lcssa, %.020.lcssa
  %.not23 = icmp eq i64 %10, 0
  br i1 %.not23, label %22, label %.thread

.lr.ph:                                           ; preds = %.lr.ph37, %.lr.ph
  %.031 = phi i64 [ %19, %.lr.ph ], [ 0, %.lr.ph37 ]
  %.01830 = phi i64 [ %.1, %.lr.ph ], [ 0, %.lr.ph37 ]
  %.01929 = phi i64 [ %18, %.lr.ph ], [ 0, %.lr.ph37 ]
  %.02028 = phi i64 [ %.121, %.lr.ph ], [ 0, %.lr.ph37 ]
  %.02227 = phi i64 [ %15, %.lr.ph ], [ 0, %.lr.ph37 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %12 = and i64 %.031, 1
  %13 = load i64, ptr %3, align 8, !tbaa !5
  %14 = mul nuw nsw i64 %13, %12
  %15 = add nsw i64 %14, %.02227
  %16 = xor i64 %12, 1
  %17 = mul nuw nsw i64 %13, %16
  %18 = add nsw i64 %17, %.01929
  %.121 = add i64 %12, %.02028
  %.1 = add i64 %16, %.01830
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  %19 = add nuw nsw i64 %.031, 1
  %20 = load i64, ptr %2, align 8, !tbaa !5
  %21 = icmp slt i64 %19, %20
  br i1 %21, label %.lr.ph, label %._crit_edge, !llvm.loop !9

22:                                               ; preds = %._crit_edge
  %23 = srem i64 %.019.lcssa, %.018.lcssa
  %.not24 = icmp eq i64 %23, 0
  br i1 %.not24, label %24, label %.thread

24:                                               ; preds = %22
  %25 = mul nsw i64 %.018.lcssa, %.022.lcssa
  %26 = mul nsw i64 %.019.lcssa, %.020.lcssa
  %27 = icmp ne i64 %25, %26
  %cond.fr = freeze i1 %27
  br i1 %cond.fr, label %.thread, label %28

.thread:                                          ; preds = %._crit_edge, %22, %24
  br label %28

28:                                               ; preds = %24, %.thread
  %29 = phi ptr [ @.str.1, %.thread ], [ @.str.2, %24 ]
  %30 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %29)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %31 = load i64, ptr %1, align 8, !tbaa !5
  %32 = add nsw i64 %31, -1
  store i64 %32, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %31, 0
  br i1 %.not, label %._crit_edge38, label %.lr.ph37, !llvm.loop !11

._crit_edge38:                                    ; preds = %28, %0
  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: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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

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,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass