; LLVM IR from DionysiosB/CodeForces :: 2069B-SetOfStrangers (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"

%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long, long, std::_Identity<long>, std::less<long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long, long, std::_Identity<long>, std::less<long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca %"class.std::set", align 8
  %6 = alloca %"class.std::set", align 8
  %7 = alloca i64, align 8
  %8 = alloca i32, align 4
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca %"struct.std::pair", align 8
  %14 = alloca %"struct.std::pair", align 8
  %15 = alloca i8, align 1
  %16 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %17 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %18 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %20

20:                                               ; preds = %123, %121, %0
  %21 = load i64, ptr %2, align 8, !tbaa !5
  %22 = add nsw i64 %21, -1
  store i64 %22, ptr %2, align 8, !tbaa !5
  %23 = icmp ne i64 %21, 0
  br i1 %23, label %24, label %130

24:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #5
  %25 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %3, ptr noundef %4)
  call void @llvm.lifetime.start.p0(i64 48, ptr %5) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  call void @llvm.lifetime.start.p0(i64 48, ptr %6) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %6) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #5
  store i64 0, ptr %7, align 8, !tbaa !5
  br label %26

26:                                               ; preds = %68, %24
  %27 = load i64, ptr %7, align 8, !tbaa !5
  %28 = load i64, ptr %3, align 8, !tbaa !5
  %29 = icmp slt i64 %27, %28
  br i1 %29, label %31, label %30

30:                                               ; preds = %26
  store i32 4, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %71

31:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  store i64 0, ptr %9, align 8, !tbaa !5
  br label %32

32:                                               ; preds = %64, %31
  %33 = load i64, ptr %9, align 8, !tbaa !5
  %34 = load i64, ptr %4, align 8, !tbaa !5
  %35 = icmp slt i64 %33, %34
  br i1 %35, label %37, label %36

36:                                               ; preds = %32
  store i32 7, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %67

37:                                               ; preds = %32
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #5
  %38 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %10)
          to label %39 unwind label %52

39:                                               ; preds = %37
  %40 = load i64, ptr %7, align 8, !tbaa !5
  %41 = load i64, ptr %9, align 8, !tbaa !5
  %42 = add nsw i64 %40, %41
  %43 = srem i64 %42, 2
  %44 = icmp ne i64 %43, 0
  br i1 %44, label %45, label %56

45:                                               ; preds = %39
  %46 = invoke { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(ptr noundef nonnull align 8 dereferenceable(48) %5, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %47 unwind label %52

47:                                               ; preds = %45
  %48 = getelementptr inbounds { ptr, i8 }, ptr %13, i32 0, i32 0
  %49 = extractvalue { ptr, i8 } %46, 0
  store ptr %49, ptr %48, align 8
  %50 = getelementptr inbounds { ptr, i8 }, ptr %13, i32 0, i32 1
  %51 = extractvalue { ptr, i8 } %46, 1
  store i8 %51, ptr %50, align 8
  br label %63

52:                                               ; preds = %56, %45, %37
  %53 = landingpad { ptr, i32 }
          cleanup
  %54 = extractvalue { ptr, i32 } %53, 0
  store ptr %54, ptr %11, align 8
  %55 = extractvalue { ptr, i32 } %53, 1
  store i32 %55, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #5
  br label %129

56:                                               ; preds = %39
  %57 = invoke { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(ptr noundef nonnull align 8 dereferenceable(48) %6, ptr noundef nonnull align 8 dereferenceable(8) %10)
          to label %58 unwind label %52

58:                                               ; preds = %56
  %59 = getelementptr inbounds { ptr, i8 }, ptr %14, i32 0, i32 0
  %60 = extractvalue { ptr, i8 } %57, 0
  store ptr %60, ptr %59, align 8
  %61 = getelementptr inbounds { ptr, i8 }, ptr %14, i32 0, i32 1
  %62 = extractvalue { ptr, i8 } %57, 1
  store i8 %62, ptr %61, align 8
  br label %63

63:                                               ; preds = %58, %47
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #5
  br label %64

64:                                               ; preds = %63
  %65 = load i64, ptr %9, align 8, !tbaa !5
  %66 = add nsw i64 %65, 1
  store i64 %66, ptr %9, align 8, !tbaa !5
  br label %32, !llvm.loop !9

67:                                               ; preds = %36
  br label %68

68:                                               ; preds = %67
  %69 = load i64, ptr %7, align 8, !tbaa !5
  %70 = add nsw i64 %69, 1
  store i64 %70, ptr %7, align 8, !tbaa !5
  br label %26, !llvm.loop !11

71:                                               ; preds = %30
  %72 = load i64, ptr %3, align 8, !tbaa !5
  %73 = load i64, ptr %4, align 8, !tbaa !5
  %74 = mul nsw i64 %72, %73
  %75 = icmp eq i64 %74, 1
  br i1 %75, label %76, label %83

76:                                               ; preds = %71
  %77 = invoke i32 @puts(ptr noundef @.str.2)
          to label %78 unwind label %79

78:                                               ; preds = %76
  store i32 2, ptr %8, align 4
  br label %121, !llvm.loop !12

79:                                               ; preds = %76
  %80 = landingpad { ptr, i32 }
          cleanup
  %81 = extractvalue { ptr, i32 } %80, 0
  store ptr %81, ptr %11, align 8
  %82 = extractvalue { ptr, i32 } %80, 1
  store i32 %82, ptr %12, align 4
  br label %129

83:                                               ; preds = %71
  call void @llvm.lifetime.start.p0(i64 1, ptr %15) #5
  store i8 0, ptr %15, align 1, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #5
  %84 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  %85 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %16, i32 0, i32 0
  store ptr %84, ptr %85, align 8
  br label %86

86:                                               ; preds = %107, %83
  %87 = load i8, ptr %15, align 1, !tbaa !13, !range !15, !noundef !16
  %88 = trunc i8 %87 to i1
  call void @llvm.lifetime.start.p0(i64 8, ptr %17) #5
  br i1 %88, label %93, label %89

89:                                               ; preds = %86
  %90 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  %91 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %17, i32 0, i32 0
  store ptr %90, ptr %91, align 8
  %92 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIlES2_(ptr noundef nonnull align 8 dereferenceable(8) %16, ptr noundef nonnull align 8 dereferenceable(8) %17) #5
  br label %93

93:                                               ; preds = %89, %86
  %94 = phi i1 [ false, %86 ], [ %92, %89 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr %17) #5
  br i1 %94, label %96, label %95

95:                                               ; preds = %93
  store i32 10, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  br label %110

96:                                               ; preds = %93
  %97 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %16) #5
  %98 = invoke noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE5countERKl(ptr noundef nonnull align 8 dereferenceable(48) %6, ptr noundef nonnull align 8 dereferenceable(8) %97)
          to label %99 unwind label %102

99:                                               ; preds = %96
  %100 = icmp ne i64 %98, 0
  br i1 %100, label %101, label %106

101:                                              ; preds = %99
  store i8 1, ptr %15, align 1, !tbaa !13
  br label %106

102:                                              ; preds = %96
  %103 = landingpad { ptr, i32 }
          cleanup
  %104 = extractvalue { ptr, i32 } %103, 0
  store ptr %104, ptr %11, align 8
  %105 = extractvalue { ptr, i32 } %103, 1
  store i32 %105, ptr %12, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  br label %128

106:                                              ; preds = %101, %99
  br label %107

107:                                              ; preds = %106
  %108 = call ptr @_ZNSt23_Rb_tree_const_iteratorIlEppEi(ptr noundef nonnull align 8 dereferenceable(8) %16, i32 noundef 0) #5
  %109 = getelementptr inbounds %"struct.std::_Rb_tree_const_iterator", ptr %18, i32 0, i32 0
  store ptr %108, ptr %109, align 8
  br label %86, !llvm.loop !17

110:                                              ; preds = %95
  %111 = call noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  %112 = sub i64 %111, 1
  %113 = call noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %6) #5
  %114 = load i8, ptr %15, align 1, !tbaa !13, !range !15, !noundef !16
  %115 = trunc i8 %114 to i1
  %116 = zext i1 %115 to i64
  %117 = sub i64 %113, %116
  %118 = add i64 %112, %117
  %119 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.3, i64 noundef %118)
          to label %120 unwind label %124

120:                                              ; preds = %110
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #5
  store i32 0, ptr %8, align 4
  br label %121

121:                                              ; preds = %120, %78
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %6) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %6) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  %122 = load i32, ptr %8, align 4
  switch i32 %122, label %137 [
    i32 0, label %123
    i32 2, label %20
  ]

123:                                              ; preds = %121
  br label %20, !llvm.loop !12

124:                                              ; preds = %110
  %125 = landingpad { ptr, i32 }
          cleanup
  %126 = extractvalue { ptr, i32 } %125, 0
  store ptr %126, ptr %11, align 8
  %127 = extractvalue { ptr, i32 } %125, 1
  store i32 %127, ptr %12, align 4
  br label %128

128:                                              ; preds = %124, %102
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #5
  br label %129

129:                                              ; preds = %128, %79, %52
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %6) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %6) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  br label %132

130:                                              ; preds = %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %131 = load i32, ptr %1, align 4
  ret i32 %131

132:                                              ; preds = %129
  %133 = load ptr, ptr %11, align 8
  %134 = load i32, ptr %12, align 4
  %135 = insertvalue { ptr, i32 } poison, ptr %133, 0
  %136 = insertvalue { ptr, i32 } %135, i32 %134, 1
  resume { ptr, i32 } %136

137:                                              ; preds = %121
  unreachable
}

; 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: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #4 align 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIlSt4lessIlESaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIlES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE5countERKl(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIlEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #3 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 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 = { mustprogress 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 #4 = { mustprogress 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 #5 = { 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 = !{!14, !14, i64 0}
!14 = !{!"bool", !7, i64 0}
!15 = !{i8 0, i8 2}
!16 = !{}
!17 = distinct !{!17, !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"

%"class.std::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long, long, std::_Identity<long>, std::less<long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long, long, std::_Identity<long>, std::less<long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca %"class.std::set", align 8
  %5 = alloca %"class.std::set", align 8
  %6 = alloca i64, align 8
  %7 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  %8 = alloca %"struct.std::_Rb_tree_const_iterator", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %10 = load i64, ptr %1, align 8, !tbaa !5
  %11 = add nsw i64 %10, -1
  store i64 %11, ptr %1, align 8, !tbaa !5
  %.not29 = icmp eq i64 %10, 0
  br i1 %.not29, label %._crit_edge32, label %.lr.ph31

.lr.ph31:                                         ; preds = %0, %59
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #5
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %4) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %5) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  %13 = load i64, ptr %2, align 8, !tbaa !5
  %14 = icmp sgt i64 %13, 0
  %.pre37 = load i64, ptr %3, align 8, !tbaa !5
  %15 = icmp sgt i64 %.pre37, 0
  %or.cond = select i1 %14, i1 %15, i1 false
  br i1 %or.cond, label %.preheader, label %._crit_edge27

.preheader:                                       ; preds = %.lr.ph31, %._crit_edge
  %16 = phi i64 [ %22, %._crit_edge ], [ %13, %.lr.ph31 ]
  %17 = phi i64 [ %23, %._crit_edge ], [ %.pre37, %.lr.ph31 ]
  %.026 = phi i64 [ %24, %._crit_edge ], [ 0, %.lr.ph31 ]
  %18 = icmp sgt i64 %17, 0
  br i1 %18, label %.lr.ph, label %._crit_edge

._crit_edge27:                                    ; preds = %._crit_edge, %.lr.ph31
  %19 = phi i64 [ %.pre37, %.lr.ph31 ], [ %23, %._crit_edge ]
  %.lcssa = phi i64 [ %13, %.lr.ph31 ], [ %22, %._crit_edge ]
  %20 = mul nsw i64 %19, %.lcssa
  %21 = icmp eq i64 %20, 1
  br i1 %21, label %37, label %39

._crit_edge.loopexit:                             ; preds = %33
  %.pre = load i64, ptr %2, align 8, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.preheader
  %22 = phi i64 [ %.pre, %._crit_edge.loopexit ], [ %16, %.preheader ]
  %23 = phi i64 [ %35, %._crit_edge.loopexit ], [ %17, %.preheader ]
  %24 = add nuw nsw i64 %.026, 1
  %25 = icmp slt i64 %24, %22
  br i1 %25, label %.preheader, label %._crit_edge27, !llvm.loop !9

.lr.ph:                                           ; preds = %.preheader, %33
  %.01425 = phi i64 [ %34, %33 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  %26 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %6)
  %27 = add nuw nsw i64 %.01425, %.026
  %28 = and i64 %27, 1
  %.not19 = icmp eq i64 %28, 0
  %29 = select i1 %.not19, ptr %5, ptr %4
  %30 = invoke { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(ptr noundef nonnull align 8 dereferenceable(48) %29, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %33 unwind label %31

31:                                               ; preds = %.lr.ph
  %32 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  br label %62

33:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  %34 = add nuw nsw i64 %.01425, 1
  %35 = load i64, ptr %3, align 8, !tbaa !5
  %36 = icmp slt i64 %34, %35
  br i1 %36, label %.lr.ph, label %._crit_edge.loopexit, !llvm.loop !12

37:                                               ; preds = %._crit_edge27
  %38 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %59, !llvm.loop !13

39:                                               ; preds = %._crit_edge27
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #5
  %40 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  store ptr %40, ptr %7, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #5
  br label %41

41:                                               ; preds = %39, %54
  %.01328 = phi i8 [ 0, %39 ], [ %spec.select, %54 ]
  %42 = call ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  store ptr %42, ptr %8, align 8
  %43 = call noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIlES2_(ptr noundef nonnull align 8 dereferenceable(8) %7, ptr noundef nonnull align 8 dereferenceable(8) %8) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  br i1 %43, label %51, label %.loopexit

.critedge:                                        ; preds = %54
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  br label %.loopexit

.loopexit:                                        ; preds = %41, %.critedge
  %.01324 = phi i8 [ %spec.select, %.critedge ], [ %.01328, %41 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  %44 = call noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  %45 = call noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  %.mask = and i8 %.01324, 1
  %46 = xor i8 %.mask, -1
  %47 = sext i8 %46 to i64
  %48 = add i64 %44, %47
  %49 = add i64 %48, %45
  %50 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i64 noundef %49)
  br label %59

51:                                               ; preds = %41
  %52 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %7) #5
  %53 = invoke noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE5countERKl(ptr noundef nonnull align 8 dereferenceable(48) %5, ptr noundef nonnull align 8 dereferenceable(8) %52)
          to label %54 unwind label %57

54:                                               ; preds = %51
  %.not18 = icmp eq i64 %53, 0
  %spec.select = select i1 %.not18, i8 %.01328, i8 1
  %55 = call ptr @_ZNSt23_Rb_tree_const_iteratorIlEppEi(ptr noundef nonnull align 8 dereferenceable(8) %7, i32 noundef 0) #5
  %56 = trunc nuw i8 %spec.select to i1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #5
  br i1 %56, label %.critedge, label %41, !llvm.loop !14

57:                                               ; preds = %51
  %58 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #5
  br label %62

59:                                               ; preds = %.loopexit, %37
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %5) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  %60 = load i64, ptr %1, align 8, !tbaa !5
  %61 = add nsw i64 %60, -1
  store i64 %61, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %60, 0
  br i1 %.not, label %._crit_edge32, label %.lr.ph31

62:                                               ; preds = %57, %31
  %.pn = phi { ptr, i32 } [ %32, %31 ], [ %58, %57 ]
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %5) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %5) #5
  call void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %4) #5
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn

._crit_edge32:                                    ; preds = %59, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  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 nounwind uwtable
declare dso_local void @_ZNSt3setIlSt4lessIlESaIlEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIlSt4lessIlESaIlEE6insertERKl(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIlSt4lessIlESaIlEE5beginEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZStneRKSt23_Rb_tree_const_iteratorIlES2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNKSt3setIlSt4lessIlESaIlEE3endEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE5countERKl(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZNKSt23_Rb_tree_const_iteratorIlEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt23_Rb_tree_const_iteratorIlEppEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #3 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt3setIlSt4lessIlESaIlEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIlSt4lessIlESaIlEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #3 align 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 = { 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 = { mustprogress 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 #4 = { mustprogress 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 #5 = { 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, !11}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!"llvm.loop.unswitch.partial.disable"}
!12 = distinct !{!12, !10}
!13 = distinct !{!13, !10}
!14 = distinct !{!14, !10}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SROAPass,SimpleLoopUnswitchPass,SimplifyCFGPass