; LLVM IR from DionysiosB/CodeForces :: 1802A-Likes (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 [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 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 = %86, %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 %88

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 !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 0, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !5
  br label %17

17:                                               ; preds = %34, %15
  %18 = load i64, ptr %6, 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 %6) #3
  br label %37

22:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %23 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %7)
  %24 = load i64, ptr %7, align 8, !tbaa !5
  %25 = icmp sgt i64 %24, 0
  %26 = zext i1 %25 to i64
  %27 = load i64, ptr %4, align 8, !tbaa !5
  %28 = add nsw i64 %27, %26
  store i64 %28, ptr %4, align 8, !tbaa !5
  %29 = load i64, ptr %7, align 8, !tbaa !5
  %30 = icmp slt i64 %29, 0
  %31 = zext i1 %30 to i64
  %32 = load i64, ptr %5, align 8, !tbaa !5
  %33 = add nsw i64 %32, %31
  store i64 %33, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %34

34:                                               ; preds = %22
  %35 = load i64, ptr %6, align 8, !tbaa !5
  %36 = add nsw i64 %35, 1
  store i64 %36, ptr %6, align 8, !tbaa !5
  br label %17, !llvm.loop !9

37:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 1, ptr %8, align 8, !tbaa !5
  br label %38

38:                                               ; preds = %57, %37
  %39 = load i64, ptr %8, align 8, !tbaa !5
  %40 = load i64, ptr %3, align 8, !tbaa !5
  %41 = icmp sle i64 %39, %40
  br i1 %41, label %43, label %42

42:                                               ; preds = %38
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %60

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

47:                                               ; preds = %43
  %48 = load i64, ptr %8, align 8, !tbaa !5
  br label %54

49:                                               ; preds = %43
  %50 = load i64, ptr %4, align 8, !tbaa !5
  %51 = mul nsw i64 2, %50
  %52 = load i64, ptr %8, align 8, !tbaa !5
  %53 = sub nsw i64 %51, %52
  br label %54

54:                                               ; preds = %49, %47
  %55 = phi i64 [ %48, %47 ], [ %53, %49 ]
  %56 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %55)
  br label %57

57:                                               ; preds = %54
  %58 = load i64, ptr %8, align 8, !tbaa !5
  %59 = add nsw i64 %58, 1
  store i64 %59, ptr %8, align 8, !tbaa !5
  br label %38, !llvm.loop !11

60:                                               ; preds = %42
  %61 = call i32 @puts(ptr noundef @.str.2)
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  store i64 1, ptr %9, align 8, !tbaa !5
  br label %62

62:                                               ; preds = %83, %60
  %63 = load i64, ptr %9, align 8, !tbaa !5
  %64 = load i64, ptr %3, align 8, !tbaa !5
  %65 = icmp sle i64 %63, %64
  br i1 %65, label %67, label %66

66:                                               ; preds = %62
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  br label %86

67:                                               ; preds = %62
  %68 = load i64, ptr %9, align 8, !tbaa !5
  %69 = load i64, ptr %5, align 8, !tbaa !5
  %70 = mul nsw i64 2, %69
  %71 = icmp sle i64 %68, %70
  br i1 %71, label %72, label %75

72:                                               ; preds = %67
  %73 = load i64, ptr %9, align 8, !tbaa !5
  %74 = srem i64 %73, 2
  br label %80

75:                                               ; preds = %67
  %76 = load i64, ptr %9, align 8, !tbaa !5
  %77 = load i64, ptr %5, align 8, !tbaa !5
  %78 = mul nsw i64 2, %77
  %79 = sub nsw i64 %76, %78
  br label %80

80:                                               ; preds = %75, %72
  %81 = phi i64 [ %74, %72 ], [ %79, %75 ]
  %82 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %81)
  br label %83

83:                                               ; preds = %80
  %84 = load i64, ptr %9, align 8, !tbaa !5
  %85 = add nsw i64 %84, 1
  store i64 %85, ptr %9, align 8, !tbaa !5
  br label %62, !llvm.loop !12

86:                                               ; preds = %66
  %87 = call i32 @puts(ptr noundef @.str.2)
  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

88:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %89 = load i32, ptr %1, align 4
  ret i32 %89
}

; 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 @printf(ptr noundef, ...) #2

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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !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 [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [1 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
  %.not40 = icmp eq i64 %5, 0
  br i1 %.not40, label %._crit_edge43, label %.lr.ph42

.lr.ph42:                                         ; preds = %0, %._crit_edge39
  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

.preheader:                                       ; preds = %.lr.ph
  %.not2432 = icmp slt i64 %18, 1
  br i1 %.not2432, label %._crit_edge, label %.lr.ph34

.lr.ph34:                                         ; preds = %.preheader
  %10 = shl nuw nsw i64 %15, 1
  br label %23

.lr.ph:                                           ; preds = %.lr.ph42, %.lr.ph
  %.02030 = phi i64 [ %17, %.lr.ph ], [ 0, %.lr.ph42 ]
  %.02129 = phi i64 [ %16, %.lr.ph ], [ 0, %.lr.ph42 ]
  %.02228 = phi i64 [ %15, %.lr.ph ], [ 0, %.lr.ph42 ]
  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 = load i64, ptr %3, align 8, !tbaa !5
  %13 = icmp sgt i64 %12, 0
  %14 = zext i1 %13 to i64
  %15 = add nuw nsw i64 %.02228, %14
  %.lobit = lshr i64 %12, 63
  %16 = add nuw nsw i64 %.lobit, %.02129
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #3
  %17 = add nuw nsw i64 %.02030, 1
  %18 = load i64, ptr %2, align 8, !tbaa !5
  %19 = icmp slt i64 %17, %18
  br i1 %19, label %.lr.ph, label %.preheader, !llvm.loop !9

._crit_edge:                                      ; preds = %23, %.lr.ph42, %.preheader
  %.021.lcssa48 = phi i64 [ %16, %.preheader ], [ 0, %.lr.ph42 ], [ %16, %23 ]
  %20 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  %21 = load i64, ptr %2, align 8, !tbaa !5
  %.not2535 = icmp slt i64 %21, 1
  br i1 %.not2535, label %._crit_edge39, label %.lr.ph38

.lr.ph38:                                         ; preds = %._crit_edge
  %22 = shl nuw nsw i64 %.021.lcssa48, 1
  br label %32

23:                                               ; preds = %.lr.ph34, %23
  %.01933 = phi i64 [ 1, %.lr.ph34 ], [ %27, %23 ]
  %.not27 = icmp ugt i64 %.01933, %15
  %24 = sub nsw i64 %10, %.01933
  %25 = select i1 %.not27, i64 %24, i64 %.01933
  %26 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %25)
  %27 = add nuw nsw i64 %.01933, 1
  %28 = load i64, ptr %2, align 8, !tbaa !5
  %.not24.not = icmp slt i64 %.01933, %28
  br i1 %.not24.not, label %23, label %._crit_edge, !llvm.loop !11

._crit_edge39:                                    ; preds = %32, %._crit_edge
  %29 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #3
  %30 = load i64, ptr %1, align 8, !tbaa !5
  %31 = add nsw i64 %30, -1
  store i64 %31, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %30, 0
  br i1 %.not, label %._crit_edge43, label %.lr.ph42, !llvm.loop !12

32:                                               ; preds = %.lr.ph38, %32
  %.036 = phi i64 [ 1, %.lr.ph38 ], [ %37, %32 ]
  %.not26 = icmp ugt i64 %.036, %22
  %33 = and i64 %.036, 1
  %34 = sub nsw i64 %.036, %22
  %35 = select i1 %.not26, i64 %34, i64 %33
  %36 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %35)
  %37 = add nuw nsw i64 %.036, 1
  %38 = load i64, ptr %2, align 8, !tbaa !5
  %.not25.not = icmp slt i64 %.036, %38
  br i1 %.not25.not, label %32, label %._crit_edge39, !llvm.loop !13

._crit_edge43:                                    ; preds = %._crit_edge39, %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 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; 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}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !10}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass