; LLVM IR from DionysiosB/CodeForces :: 0900-0999 (950A-LeftHandersRightHandersAndAmbidexters)

; 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 [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 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
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3, ptr noundef %4)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 0, ptr %5, align 8, !tbaa !5
  %7 = load i64, ptr %2, align 8, !tbaa !5
  %8 = load i64, ptr %4, align 8, !tbaa !5
  %9 = add nsw i64 %7, %8
  %10 = load i64, ptr %3, align 8, !tbaa !5
  %11 = icmp sle i64 %9, %10
  br i1 %11, label %12, label %17

12:                                               ; preds = %0
  %13 = load i64, ptr %2, align 8, !tbaa !5
  %14 = load i64, ptr %4, align 8, !tbaa !5
  %15 = add nsw i64 %13, %14
  %16 = mul nsw i64 2, %15
  store i64 %16, ptr %5, align 8, !tbaa !5
  br label %61

17:                                               ; preds = %0
  %18 = load i64, ptr %2, align 8, !tbaa !5
  %19 = load i64, ptr %3, align 8, !tbaa !5
  %20 = icmp sle i64 %18, %19
  br i1 %20, label %21, label %32

21:                                               ; preds = %17
  %22 = load i64, ptr %3, align 8, !tbaa !5
  %23 = mul nsw i64 2, %22
  %24 = load i64, ptr %4, align 8, !tbaa !5
  %25 = load i64, ptr %3, align 8, !tbaa !5
  %26 = load i64, ptr %2, align 8, !tbaa !5
  %27 = sub nsw i64 %25, %26
  %28 = sub nsw i64 %24, %27
  %29 = sdiv i64 %28, 2
  %30 = mul nsw i64 2, %29
  %31 = add nsw i64 %23, %30
  store i64 %31, ptr %5, align 8, !tbaa !5
  br label %60

32:                                               ; preds = %17
  %33 = load i64, ptr %3, align 8, !tbaa !5
  %34 = load i64, ptr %4, align 8, !tbaa !5
  %35 = add nsw i64 %33, %34
  %36 = load i64, ptr %2, align 8, !tbaa !5
  %37 = icmp sle i64 %35, %36
  br i1 %37, label %38, label %43

38:                                               ; preds = %32
  %39 = load i64, ptr %3, align 8, !tbaa !5
  %40 = load i64, ptr %4, align 8, !tbaa !5
  %41 = add nsw i64 %39, %40
  %42 = mul nsw i64 2, %41
  store i64 %42, ptr %5, align 8, !tbaa !5
  br label %59

43:                                               ; preds = %32
  %44 = load i64, ptr %3, align 8, !tbaa !5
  %45 = load i64, ptr %2, align 8, !tbaa !5
  %46 = icmp sle i64 %44, %45
  br i1 %46, label %47, label %58

47:                                               ; preds = %43
  %48 = load i64, ptr %2, align 8, !tbaa !5
  %49 = mul nsw i64 2, %48
  %50 = load i64, ptr %4, align 8, !tbaa !5
  %51 = load i64, ptr %2, align 8, !tbaa !5
  %52 = load i64, ptr %3, align 8, !tbaa !5
  %53 = sub nsw i64 %51, %52
  %54 = sub nsw i64 %50, %53
  %55 = sdiv i64 %54, 2
  %56 = mul nsw i64 2, %55
  %57 = add nsw i64 %49, %56
  store i64 %57, ptr %5, align 8, !tbaa !5
  br label %58

58:                                               ; preds = %47, %43
  br label %59

59:                                               ; preds = %58, %38
  br label %60

60:                                               ; preds = %59, %21
  br label %61

61:                                               ; preds = %60, %12
  %62 = load i64, ptr %5, align 8, !tbaa !5
  %63 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %62)
  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
  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 @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"}


; 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 [12 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #3
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %5 = load i64, ptr %1, align 8, !tbaa !5
  %6 = load i64, ptr %3, align 8, !tbaa !5
  %7 = add i64 %6, %5
  %8 = load i64, ptr %2, align 8, !tbaa !5
  %.not = icmp sgt i64 %7, %8
  br i1 %.not, label %9, label %20

9:                                                ; preds = %0
  %.not5 = icmp sgt i64 %5, %8
  br i1 %.not5, label %14, label %10

10:                                               ; preds = %9
  %11 = sub i64 %7, %8
  %12 = sdiv i64 %11, 2
  %13 = add i64 %12, %8
  br label %20

14:                                               ; preds = %9
  %15 = add nsw i64 %8, %6
  %.not6 = icmp sgt i64 %15, %5
  br i1 %.not6, label %16, label %20

16:                                               ; preds = %14
  %.neg = sub i64 %6, %5
  %17 = add i64 %.neg, %8
  %18 = sdiv i64 %17, 2
  %19 = add i64 %18, %5
  br label %20

20:                                               ; preds = %14, %0, %10, %16
  %.0.in = phi i64 [ %13, %10 ], [ %19, %16 ], [ %7, %0 ], [ %15, %14 ]
  %.0 = shl i64 %.0.in, 1
  %21 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %.0)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  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 @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"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass