; LLVM IR from DionysiosB/CodeForces :: 1500-1599 (1566C-MAXMEXCut)

; 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_istream" = type { ptr, i64, %"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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"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] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; 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 %"class.std::__cxx11::basic_string", align 8
  %5 = alloca %"class.std::__cxx11::basic_string", align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  %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) #6
  %10 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %2)
  br label %11

11:                                               ; preds = %143, %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 %145

15:                                               ; preds = %11
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  %16 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %3)
  call void @llvm.lifetime.start.p0(i64 32, ptr %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr %5) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  %17 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %18 unwind label %40

18:                                               ; preds = %15
  %19 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) %17, ptr noundef nonnull align 8 dereferenceable(32) %5)
          to label %20 unwind label %40

20:                                               ; preds = %18
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  store i64 0, ptr %8, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  store i64 0, ptr %9, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %135, %20
  %22 = load i64, ptr %8, align 8, !tbaa !5
  %23 = load i64, ptr %3, align 8, !tbaa !5
  %24 = icmp slt i64 %22, %23
  br i1 %24, label %25, label %138

25:                                               ; preds = %21
  %26 = load i64, ptr %8, align 8, !tbaa !5
  %27 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %26)
          to label %28 unwind label %44

28:                                               ; preds = %25
  %29 = load i8, ptr %27, align 1, !tbaa !9
  %30 = sext i8 %29 to i32
  %31 = load i64, ptr %8, align 8, !tbaa !5
  %32 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %31)
          to label %33 unwind label %44

33:                                               ; preds = %28
  %34 = load i8, ptr %32, align 1, !tbaa !9
  %35 = sext i8 %34 to i32
  %36 = icmp ne i32 %30, %35
  br i1 %36, label %37, label %48

37:                                               ; preds = %33
  %38 = load i64, ptr %9, align 8, !tbaa !5
  %39 = add nsw i64 %38, 2
  store i64 %39, ptr %9, align 8, !tbaa !5
  br label %135

40:                                               ; preds = %18, %15
  %41 = landingpad { ptr, i32 }
          cleanup
  %42 = extractvalue { ptr, i32 } %41, 0
  store ptr %42, ptr %6, align 8
  %43 = extractvalue { ptr, i32 } %41, 1
  store i32 %43, ptr %7, align 4
  br label %144

44:                                               ; preds = %141, %138, %116, %108, %96, %89, %75, %67, %55, %48, %28, %25
  %45 = landingpad { ptr, i32 }
          cleanup
  %46 = extractvalue { ptr, i32 } %45, 0
  store ptr %46, ptr %6, align 8
  %47 = extractvalue { ptr, i32 } %45, 1
  store i32 %47, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %144

48:                                               ; preds = %33
  %49 = load i64, ptr %8, align 8, !tbaa !5
  %50 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %49)
          to label %51 unwind label %44

51:                                               ; preds = %48
  %52 = load i8, ptr %50, align 1, !tbaa !9
  %53 = sext i8 %52 to i32
  %54 = icmp eq i32 %53, 49
  br i1 %54, label %55, label %89

55:                                               ; preds = %51
  %56 = load i64, ptr %8, align 8, !tbaa !5
  %57 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %56)
          to label %58 unwind label %44

58:                                               ; preds = %55
  %59 = load i8, ptr %57, align 1, !tbaa !9
  %60 = sext i8 %59 to i32
  %61 = icmp eq i32 %60, 49
  br i1 %61, label %62, label %89

62:                                               ; preds = %58
  %63 = load i64, ptr %8, align 8, !tbaa !5
  %64 = add nsw i64 %63, 1
  %65 = load i64, ptr %3, align 8, !tbaa !5
  %66 = icmp slt i64 %64, %65
  br i1 %66, label %67, label %88

67:                                               ; preds = %62
  %68 = load i64, ptr %8, align 8, !tbaa !5
  %69 = add nsw i64 %68, 1
  %70 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %69)
          to label %71 unwind label %44

71:                                               ; preds = %67
  %72 = load i8, ptr %70, align 1, !tbaa !9
  %73 = sext i8 %72 to i32
  %74 = icmp eq i32 %73, 48
  br i1 %74, label %75, label %88

75:                                               ; preds = %71
  %76 = load i64, ptr %8, align 8, !tbaa !5
  %77 = add nsw i64 %76, 1
  %78 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %77)
          to label %79 unwind label %44

79:                                               ; preds = %75
  %80 = load i8, ptr %78, align 1, !tbaa !9
  %81 = sext i8 %80 to i32
  %82 = icmp eq i32 %81, 48
  br i1 %82, label %83, label %88

83:                                               ; preds = %79
  %84 = load i64, ptr %9, align 8, !tbaa !5
  %85 = add nsw i64 %84, 2
  store i64 %85, ptr %9, align 8, !tbaa !5
  %86 = load i64, ptr %8, align 8, !tbaa !5
  %87 = add nsw i64 %86, 1
  store i64 %87, ptr %8, align 8, !tbaa !5
  br label %88

88:                                               ; preds = %83, %79, %71, %62
  br label %134

89:                                               ; preds = %58, %51
  %90 = load i64, ptr %8, align 8, !tbaa !5
  %91 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %90)
          to label %92 unwind label %44

92:                                               ; preds = %89
  %93 = load i8, ptr %91, align 1, !tbaa !9
  %94 = sext i8 %93 to i32
  %95 = icmp eq i32 %94, 48
  br i1 %95, label %96, label %133

96:                                               ; preds = %92
  %97 = load i64, ptr %8, align 8, !tbaa !5
  %98 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %97)
          to label %99 unwind label %44

99:                                               ; preds = %96
  %100 = load i8, ptr %98, align 1, !tbaa !9
  %101 = sext i8 %100 to i32
  %102 = icmp eq i32 %101, 48
  br i1 %102, label %103, label %133

103:                                              ; preds = %99
  %104 = load i64, ptr %8, align 8, !tbaa !5
  %105 = add nsw i64 %104, 1
  %106 = load i64, ptr %3, align 8, !tbaa !5
  %107 = icmp slt i64 %105, %106
  br i1 %107, label %108, label %129

108:                                              ; preds = %103
  %109 = load i64, ptr %8, align 8, !tbaa !5
  %110 = add nsw i64 %109, 1
  %111 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %110)
          to label %112 unwind label %44

112:                                              ; preds = %108
  %113 = load i8, ptr %111, align 1, !tbaa !9
  %114 = sext i8 %113 to i32
  %115 = icmp eq i32 %114, 49
  br i1 %115, label %116, label %129

116:                                              ; preds = %112
  %117 = load i64, ptr %8, align 8, !tbaa !5
  %118 = add nsw i64 %117, 1
  %119 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %118)
          to label %120 unwind label %44

120:                                              ; preds = %116
  %121 = load i8, ptr %119, align 1, !tbaa !9
  %122 = sext i8 %121 to i32
  %123 = icmp eq i32 %122, 49
  br i1 %123, label %124, label %129

124:                                              ; preds = %120
  %125 = load i64, ptr %9, align 8, !tbaa !5
  %126 = add nsw i64 %125, 2
  store i64 %126, ptr %9, align 8, !tbaa !5
  %127 = load i64, ptr %8, align 8, !tbaa !5
  %128 = add nsw i64 %127, 1
  store i64 %128, ptr %8, align 8, !tbaa !5
  br label %132

129:                                              ; preds = %120, %112, %103
  %130 = load i64, ptr %9, align 8, !tbaa !5
  %131 = add nsw i64 %130, 1
  store i64 %131, ptr %9, align 8, !tbaa !5
  br label %132

132:                                              ; preds = %129, %124
  br label %133

133:                                              ; preds = %132, %99, %92
  br label %134

134:                                              ; preds = %133, %88
  br label %135

135:                                              ; preds = %134, %37
  %136 = load i64, ptr %8, align 8, !tbaa !5
  %137 = add nsw i64 %136, 1
  store i64 %137, ptr %8, align 8, !tbaa !5
  br label %21, !llvm.loop !10

138:                                              ; preds = %21
  %139 = load i64, ptr %9, align 8, !tbaa !5
  %140 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %139)
          to label %141 unwind label %44

141:                                              ; preds = %138
  %142 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %140, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %143 unwind label %44

143:                                              ; preds = %141
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  br label %11, !llvm.loop !12

144:                                              ; preds = %44, %40
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %5) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %147

145:                                              ; preds = %11
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %146 = load i32, ptr %1, align 4
  ret i32 %146

147:                                              ; preds = %144
  %148 = load ptr, ptr %6, align 8
  %149 = load i32, ptr %7, align 4
  %150 = insertvalue { ptr, i32 } poison, ptr %148, 0
  %151 = insertvalue { ptr, i32 } %150, i32 %149, 1
  resume { ptr, i32 } %151
}

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) #3 align 2

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #2 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: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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 = { 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 #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 = { "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 = { 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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


; 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_istream" = type { ptr, i64, %"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::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"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] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; 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 %"class.std::__cxx11::basic_string", align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %5 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %1)
  %6 = load i64, ptr %1, align 8, !tbaa !5
  %7 = add nsw i64 %6, -1
  store i64 %7, ptr %1, align 8, !tbaa !5
  %.not34 = icmp eq i64 %6, 0
  br i1 %.not34, label %._crit_edge37, label %.lr.ph36

.lr.ph36:                                         ; preds = %0, %76
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) %2)
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  %9 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(32) %3)
          to label %10 unwind label %20

10:                                               ; preds = %.lr.ph36
  %11 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16) %9, ptr noundef nonnull align 8 dereferenceable(32) %4)
          to label %.preheader unwind label %20

.preheader:                                       ; preds = %10
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %13 = icmp sgt i64 %12, 0
  br i1 %13, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %.preheader, %69
  %.033 = phi i64 [ %.1, %69 ], [ 0, %.preheader ]
  %.02332 = phi i64 [ %70, %69 ], [ 0, %.preheader ]
  %14 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %.02332)
  %15 = load i8, ptr %14, align 1, !tbaa !9
  %16 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %.02332)
  %17 = load i8, ptr %16, align 1, !tbaa !9
  %.not30 = icmp eq i8 %15, %17
  br i1 %.not30, label %24, label %18

18:                                               ; preds = %.lr.ph
  %19 = add nsw i64 %.033, 2
  br label %69

20:                                               ; preds = %10, %.lr.ph36
  %21 = landingpad { ptr, i32 }
          cleanup
  br label %79

22:                                               ; preds = %74, %._crit_edge
  %23 = landingpad { ptr, i32 }
          cleanup
  br label %79

24:                                               ; preds = %.lr.ph
  %25 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %.02332)
  %26 = load i8, ptr %25, align 1, !tbaa !9
  %27 = icmp eq i8 %26, 49
  br i1 %27, label %28, label %45

28:                                               ; preds = %24
  %29 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %.02332)
  %30 = load i8, ptr %29, align 1, !tbaa !9
  %31 = icmp eq i8 %30, 49
  br i1 %31, label %32, label %45

32:                                               ; preds = %28
  %33 = add nsw i64 %.02332, 1
  %34 = load i64, ptr %2, align 8, !tbaa !5
  %35 = icmp slt i64 %33, %34
  br i1 %35, label %36, label %69

36:                                               ; preds = %32
  %37 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %33)
  %38 = load i8, ptr %37, align 1, !tbaa !9
  %39 = icmp eq i8 %38, 48
  br i1 %39, label %40, label %69

40:                                               ; preds = %36
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %33)
  %42 = load i8, ptr %41, align 1, !tbaa !9
  %43 = icmp eq i8 %42, 48
  %44 = add nsw i64 %.033, 2
  %spec.select = select i1 %43, i64 %33, i64 %.02332
  %spec.select31 = select i1 %43, i64 %44, i64 %.033
  br label %69

45:                                               ; preds = %28, %24
  %46 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %.02332)
  %47 = load i8, ptr %46, align 1, !tbaa !9
  %48 = icmp eq i8 %47, 48
  br i1 %48, label %49, label %69

49:                                               ; preds = %45
  %50 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %.02332)
  %51 = load i8, ptr %50, align 1, !tbaa !9
  %52 = icmp eq i8 %51, 48
  br i1 %52, label %53, label %69

53:                                               ; preds = %49
  %54 = add nsw i64 %.02332, 1
  %55 = load i64, ptr %2, align 8, !tbaa !5
  %56 = icmp slt i64 %54, %55
  br i1 %56, label %57, label %67

57:                                               ; preds = %53
  %58 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %3, i64 noundef %54)
  %59 = load i8, ptr %58, align 1, !tbaa !9
  %60 = icmp eq i8 %59, 49
  br i1 %60, label %61, label %67

61:                                               ; preds = %57
  %62 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %54)
  %63 = load i8, ptr %62, align 1, !tbaa !9
  %64 = icmp eq i8 %63, 49
  br i1 %64, label %65, label %67

65:                                               ; preds = %61
  %66 = add nsw i64 %.033, 2
  br label %69

67:                                               ; preds = %61, %57, %53
  %68 = add nsw i64 %.033, 1
  br label %69

69:                                               ; preds = %40, %36, %32, %65, %67, %49, %45, %18
  %.124 = phi i64 [ %.02332, %18 ], [ %.02332, %36 ], [ %.02332, %32 ], [ %54, %65 ], [ %.02332, %67 ], [ %.02332, %49 ], [ %.02332, %45 ], [ %spec.select, %40 ]
  %.1 = phi i64 [ %19, %18 ], [ %.033, %36 ], [ %.033, %32 ], [ %66, %65 ], [ %68, %67 ], [ %.033, %49 ], [ %.033, %45 ], [ %spec.select31, %40 ]
  %70 = add nsw i64 %.124, 1
  %71 = load i64, ptr %2, align 8, !tbaa !5
  %72 = icmp slt i64 %70, %71
  br i1 %72, label %.lr.ph, label %._crit_edge, !llvm.loop !10

._crit_edge:                                      ; preds = %69, %.preheader
  %.0.lcssa = phi i64 [ 0, %.preheader ], [ %.1, %69 ]
  %73 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %.0.lcssa)
          to label %74 unwind label %22

74:                                               ; preds = %._crit_edge
  %75 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %73, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %76 unwind label %22

76:                                               ; preds = %74
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  %77 = load i64, ptr %1, align 8, !tbaa !5
  %78 = add nsw i64 %77, -1
  store i64 %78, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %77, 0
  br i1 %.not, label %._crit_edge37, label %.lr.ph36, !llvm.loop !12

79:                                               ; preds = %22, %20
  %.pn = phi { ptr, i32 } [ %23, %22 ], [ %21, %20 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn

._crit_edge37:                                    ; preds = %76, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  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: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #3 align 2

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32), i64 noundef) local_unnamed_addr #3 align 2

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

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

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) 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 = { 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 #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 = { "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 = { 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 = !{!7, !7, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


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