; LLVM IR from DionysiosB/CodeForces :: 0200-0299 (292B-NetworkTopology)

; 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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [4 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.5 = external hidden unnamed_addr constant [10 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 ptr, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca %"class.std::allocator", align 1
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #8
  store i64 0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #8
  store i64 0, ptr %3, align 8, !tbaa !5
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #8
  %14 = load i64, ptr %2, align 8, !tbaa !5
  %15 = add nsw i64 %14, 1
  %16 = call { i64, i1 } @llvm.umul.with.overflow.i64(i64 %15, i64 8)
  %17 = extractvalue { i64, i1 } %16, 1
  %18 = extractvalue { i64, i1 } %16, 0
  %19 = select i1 %17, i64 -1, i64 %18
  %20 = call noalias noundef nonnull ptr @_Znam(i64 noundef %19) #9
  store ptr %20, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #8
  store i64 0, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #8
  store i64 0, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #8
  store i64 0, ptr %7, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %30, %0
  %22 = load i64, ptr %7, align 8, !tbaa !5
  %23 = load i64, ptr %2, align 8, !tbaa !5
  %24 = icmp sle i64 %22, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #8
  br label %33

26:                                               ; preds = %21
  %27 = load ptr, ptr %4, align 8, !tbaa !9
  %28 = load i64, ptr %7, align 8, !tbaa !5
  %29 = getelementptr inbounds i64, ptr %27, i64 %28
  store i64 0, ptr %29, align 8, !tbaa !5
  br label %30

30:                                               ; preds = %26
  %31 = load i64, ptr %7, align 8, !tbaa !5
  %32 = add nsw i64 %31, 1
  store i64 %32, ptr %7, align 8, !tbaa !5
  br label %21, !llvm.loop !11

33:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #8
  store i64 0, ptr %8, align 8, !tbaa !5
  br label %34

34:                                               ; preds = %51, %33
  %35 = load i64, ptr %8, align 8, !tbaa !5
  %36 = load i64, ptr %3, align 8, !tbaa !5
  %37 = icmp slt i64 %35, %36
  br i1 %37, label %39, label %38

38:                                               ; preds = %34
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #8
  br label %54

39:                                               ; preds = %34
  %40 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %5, ptr noundef %6)
  %41 = load ptr, ptr %4, align 8, !tbaa !9
  %42 = load i64, ptr %5, align 8, !tbaa !5
  %43 = getelementptr inbounds i64, ptr %41, i64 %42
  %44 = load i64, ptr %43, align 8, !tbaa !5
  %45 = add nsw i64 %44, 1
  store i64 %45, ptr %43, align 8, !tbaa !5
  %46 = load ptr, ptr %4, align 8, !tbaa !9
  %47 = load i64, ptr %6, align 8, !tbaa !5
  %48 = getelementptr inbounds i64, ptr %46, i64 %47
  %49 = load i64, ptr %48, align 8, !tbaa !5
  %50 = add nsw i64 %49, 1
  store i64 %50, ptr %48, align 8, !tbaa !5
  br label %51

51:                                               ; preds = %39
  %52 = load i64, ptr %8, align 8, !tbaa !5
  %53 = add nsw i64 %52, 1
  store i64 %53, ptr %8, align 8, !tbaa !5
  br label %34, !llvm.loop !13

54:                                               ; preds = %38
  %55 = load ptr, ptr %4, align 8, !tbaa !9
  %56 = load ptr, ptr %4, align 8, !tbaa !9
  %57 = load i64, ptr %2, align 8, !tbaa !5
  %58 = getelementptr inbounds i64, ptr %56, i64 %57
  %59 = getelementptr inbounds i64, ptr %58, i64 1
  call void @_ZSt4sortIPlEvT_S1_(ptr noundef %55, ptr noundef %59)
  call void @llvm.lifetime.start.p0(i64 32, ptr %9) #8
  call void @llvm.lifetime.start.p0(i64 1, ptr %10) #8
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %10)
          to label %60 unwind label %74

60:                                               ; preds = %54
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #8
  %61 = load ptr, ptr %4, align 8, !tbaa !9
  %62 = getelementptr inbounds i64, ptr %61, i64 1
  %63 = load i64, ptr %62, align 8, !tbaa !5
  %64 = icmp eq i64 %63, 2
  br i1 %64, label %65, label %82

65:                                               ; preds = %60
  %66 = load ptr, ptr %4, align 8, !tbaa !9
  %67 = load i64, ptr %2, align 8, !tbaa !5
  %68 = getelementptr inbounds i64, ptr %66, i64 %67
  %69 = load i64, ptr %68, align 8, !tbaa !5
  %70 = icmp eq i64 %69, 2
  br i1 %70, label %71, label %82

71:                                               ; preds = %65
  %72 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef @.str.2)
          to label %73 unwind label %78

73:                                               ; preds = %71
  br label %129

74:                                               ; preds = %54
  %75 = landingpad { ptr, i32 }
          cleanup
  %76 = extractvalue { ptr, i32 } %75, 0
  store ptr %76, ptr %11, align 8
  %77 = extractvalue { ptr, i32 } %75, 1
  store i32 %77, ptr %12, align 4
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %10) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr %10) #8
  br label %137

78:                                               ; preds = %133, %131, %129, %124, %121, %102, %71
  %79 = landingpad { ptr, i32 }
          cleanup
  %80 = extractvalue { ptr, i32 } %79, 0
  store ptr %80, ptr %11, align 8
  %81 = extractvalue { ptr, i32 } %79, 1
  store i32 %81, ptr %12, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #8
  br label %137

82:                                               ; preds = %65, %60
  %83 = load ptr, ptr %4, align 8, !tbaa !9
  %84 = getelementptr inbounds i64, ptr %83, i64 1
  %85 = load i64, ptr %84, align 8, !tbaa !5
  %86 = icmp eq i64 %85, 1
  br i1 %86, label %87, label %105

87:                                               ; preds = %82
  %88 = load ptr, ptr %4, align 8, !tbaa !9
  %89 = load i64, ptr %2, align 8, !tbaa !5
  %90 = sub nsw i64 %89, 1
  %91 = getelementptr inbounds i64, ptr %88, i64 %90
  %92 = load i64, ptr %91, align 8, !tbaa !5
  %93 = icmp eq i64 %92, 1
  br i1 %93, label %94, label %105

94:                                               ; preds = %87
  %95 = load ptr, ptr %4, align 8, !tbaa !9
  %96 = load i64, ptr %2, align 8, !tbaa !5
  %97 = getelementptr inbounds i64, ptr %95, i64 %96
  %98 = load i64, ptr %97, align 8, !tbaa !5
  %99 = load i64, ptr %2, align 8, !tbaa !5
  %100 = sub nsw i64 %99, 1
  %101 = icmp eq i64 %98, %100
  br i1 %101, label %102, label %105

102:                                              ; preds = %94
  %103 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef @.str.3)
          to label %104 unwind label %78

104:                                              ; preds = %102
  br label %128

105:                                              ; preds = %94, %87, %82
  %106 = load ptr, ptr %4, align 8, !tbaa !9
  %107 = getelementptr inbounds i64, ptr %106, i64 1
  %108 = load i64, ptr %107, align 8, !tbaa !5
  %109 = icmp eq i64 %108, 1
  br i1 %109, label %110, label %124

110:                                              ; preds = %105
  %111 = load ptr, ptr %4, align 8, !tbaa !9
  %112 = getelementptr inbounds i64, ptr %111, i64 2
  %113 = load i64, ptr %112, align 8, !tbaa !5
  %114 = icmp eq i64 %113, 1
  br i1 %114, label %115, label %124

115:                                              ; preds = %110
  %116 = load ptr, ptr %4, align 8, !tbaa !9
  %117 = load i64, ptr %2, align 8, !tbaa !5
  %118 = getelementptr inbounds i64, ptr %116, i64 %117
  %119 = load i64, ptr %118, align 8, !tbaa !5
  %120 = icmp eq i64 %119, 2
  br i1 %120, label %121, label %124

121:                                              ; preds = %115
  %122 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef @.str.4)
          to label %123 unwind label %78

123:                                              ; preds = %121
  br label %127

124:                                              ; preds = %115, %110, %105
  %125 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) %9, ptr noundef @.str.1)
          to label %126 unwind label %78

126:                                              ; preds = %124
  br label %127

127:                                              ; preds = %126, %123
  br label %128

128:                                              ; preds = %127, %104
  br label %129

129:                                              ; preds = %128, %73
  %130 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %9)
          to label %131 unwind label %78

131:                                              ; preds = %129
  %132 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %130, ptr noundef @.str.5)
          to label %133 unwind label %78

133:                                              ; preds = %131
  %134 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %132, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %135 unwind label %78

135:                                              ; preds = %133
  store i32 0, ptr %1, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #8
  %136 = load i32, ptr %1, align 4
  ret i32 %136

137:                                              ; preds = %78, %74
  call void @llvm.lifetime.end.p0(i64 32, ptr %9) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #8
  br label %138

138:                                              ; preds = %137
  %139 = load ptr, ptr %11, align 8
  %140 = load i32, ptr %12, align 4
  %141 = insertvalue { ptr, i32 } poison, ptr %139, 0
  %142 = insertvalue { ptr, i32 } %141, i32 %140, 1
  resume { ptr, i32 } %142
}

; 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 speculatable willreturn memory(none)
declare { i64, i1 } @llvm.umul.with.overflow.i64(i64, i64) #3

; Function Attrs: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) #4

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPlEvT_S1_(ptr noundef, ptr noundef) #5

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #6 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #7 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #7 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) #5

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #7 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #6 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #6 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { nobuiltin allocsize(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 = { inlinehint 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 #6 = { 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 #7 = { 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 #8 = { nounwind }
attributes #9 = { builtin allocsize(0) }

!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 = !{!"any pointer", !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"

%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.std::allocator" = type { i8 }

@.str = external hidden unnamed_addr constant [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [8 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [4 x i8], align 1
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str.5 = external hidden unnamed_addr constant [10 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 i64, align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca %"class.std::allocator", align 1
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #8
  store i64 0, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #8
  store i64 0, ptr %2, align 8, !tbaa !5
  %7 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %8 = load i64, ptr %1, align 8, !tbaa !5
  %9 = add nsw i64 %8, 1
  %10 = icmp ugt i64 %9, 2305843009213693951
  %11 = shl i64 %9, 3
  %12 = select i1 %10, i64 -1, i64 %11
  %13 = call noalias noundef nonnull ptr @_Znam(i64 noundef %12) #9
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #8
  store i64 0, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #8
  store i64 0, ptr %4, align 8, !tbaa !5
  %.not26 = icmp slt i64 %8, 0
  br i1 %.not26, label %.preheader, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %0
  %14 = shl i64 %8, 3
  %15 = add i64 %14, 8
  call void @llvm.memset.p0.i64(ptr nonnull align 8 %13, i8 0, i64 %15, i1 false), !tbaa !5
  br label %.preheader

.preheader:                                       ; preds = %.lr.ph.preheader, %0
  %16 = load i64, ptr %2, align 8, !tbaa !5
  %17 = icmp sgt i64 %16, 0
  br i1 %17, label %.lr.ph29, label %._crit_edge

._crit_edge.loopexit:                             ; preds = %.lr.ph29
  %.pre = load i64, ptr %1, align 8, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.preheader
  %18 = phi i64 [ %.pre, %._crit_edge.loopexit ], [ %8, %.preheader ]
  %19 = getelementptr inbounds i64, ptr %13, i64 %18
  %20 = getelementptr inbounds i8, ptr %19, i64 8
  call void @_ZSt4sortIPlEvT_S1_(ptr noundef nonnull %13, ptr noundef nonnull %20)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %5) #8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %6) #8
  call void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #8
  invoke void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull @.str.1, ptr noundef nonnull align 1 dereferenceable(1) %6)
          to label %33 unwind label %41

.lr.ph29:                                         ; preds = %.preheader, %.lr.ph29
  %.02128 = phi i64 [ %30, %.lr.ph29 ], [ 0, %.preheader ]
  %21 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3, ptr noundef nonnull %4)
  %22 = load i64, ptr %3, align 8, !tbaa !5
  %23 = getelementptr inbounds i64, ptr %13, i64 %22
  %24 = load i64, ptr %23, align 8, !tbaa !5
  %25 = add nsw i64 %24, 1
  store i64 %25, ptr %23, align 8, !tbaa !5
  %26 = load i64, ptr %4, align 8, !tbaa !5
  %27 = getelementptr inbounds i64, ptr %13, i64 %26
  %28 = load i64, ptr %27, align 8, !tbaa !5
  %29 = add nsw i64 %28, 1
  store i64 %29, ptr %27, align 8, !tbaa !5
  %30 = add nuw nsw i64 %.02128, 1
  %31 = load i64, ptr %2, align 8, !tbaa !5
  %32 = icmp slt i64 %30, %31
  br i1 %32, label %.lr.ph29, label %._crit_edge.loopexit, !llvm.loop !9

33:                                               ; preds = %._crit_edge
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #8
  %34 = getelementptr inbounds i8, ptr %13, i64 8
  %35 = load i64, ptr %34, align 8, !tbaa !5
  switch i64 %35, label %.thread25 [
    i64 2, label %36
    i64 1, label %45
  ]

36:                                               ; preds = %33
  %37 = load i64, ptr %1, align 8, !tbaa !5
  %38 = getelementptr inbounds i64, ptr %13, i64 %37
  %39 = load i64, ptr %38, align 8, !tbaa !5
  %40 = icmp eq i64 %39, 2
  br i1 %40, label %.thread25.invoke, label %.thread25

41:                                               ; preds = %._crit_edge
  %42 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %6) #8
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %6) #8
  br label %72

43:                                               ; preds = %.thread25.invoke, %69, %67, %65
  %44 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #8
  br label %72

45:                                               ; preds = %33
  %46 = load i64, ptr %1, align 8, !tbaa !5
  %47 = add nsw i64 %46, -1
  %48 = getelementptr inbounds i64, ptr %13, i64 %47
  %49 = load i64, ptr %48, align 8, !tbaa !5
  %50 = icmp eq i64 %49, 1
  br i1 %50, label %51, label %55

51:                                               ; preds = %45
  %52 = getelementptr inbounds i64, ptr %13, i64 %46
  %53 = load i64, ptr %52, align 8, !tbaa !5
  %54 = icmp eq i64 %53, %47
  br i1 %54, label %.thread25.invoke, label %55

55:                                               ; preds = %51, %45
  %56 = getelementptr inbounds i8, ptr %13, i64 16
  %57 = load i64, ptr %56, align 8, !tbaa !5
  %58 = icmp eq i64 %57, 1
  br i1 %58, label %59, label %.thread25

59:                                               ; preds = %55
  %60 = getelementptr inbounds i64, ptr %13, i64 %46
  %61 = load i64, ptr %60, align 8, !tbaa !5
  %62 = icmp eq i64 %61, 2
  br i1 %62, label %.thread25.invoke, label %.thread25

.thread25:                                        ; preds = %33, %36, %59, %55
  br label %.thread25.invoke

.thread25.invoke:                                 ; preds = %36, %59, %51, %.thread25
  %63 = phi ptr [ @.str.1, %.thread25 ], [ @.str.3, %51 ], [ @.str.4, %59 ], [ @.str.2, %36 ]
  %64 = invoke noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32) %5, ptr noundef nonnull %63)
          to label %65 unwind label %43

65:                                               ; preds = %.thread25.invoke
  %66 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %67 unwind label %43

67:                                               ; preds = %65
  %68 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %66, ptr noundef nonnull @.str.5)
          to label %69 unwind label %43

69:                                               ; preds = %67
  %70 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %68, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %71 unwind label %43

71:                                               ; preds = %69
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #8
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #8
  ret i32 0

72:                                               ; preds = %43, %41
  %.pn = phi { ptr, i32 } [ %44, %43 ], [ %42, %41 ]
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %5) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #8
  resume { ptr, i32 } %.pn
}

; 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: nobuiltin allocsize(0)
declare noundef nonnull ptr @_Znam(i64 noundef) local_unnamed_addr #3

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIPlEvT_S1_(ptr noundef, ptr noundef) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSaIcEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2IS3_EEPKcRKS3_(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #6 align 2

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(32) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEaSEPKc(ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #6 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #4

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsIcSt11char_traitsIcESaIcEERSt13basic_ostreamIT_T0_ES7_RKNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #6 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_(ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIcED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #5 align 2

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: write)
declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #7

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 = { nobuiltin allocsize(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 = { inlinehint 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 = { 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 #6 = { 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 #7 = { nocallback nofree nounwind willreturn memory(argmem: write) }
attributes #8 = { nounwind }
attributes #9 = { builtin allocsize(0) }

!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"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopIdiomRecognizePass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass