; LLVM IR from eyangch/competitive-programming :: Codeforces/1359 (b)

; 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 i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  %12 = alloca ptr, align 8
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %15 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %16 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %17 = getelementptr i8, ptr %16, i64 -24
  %18 = load i64, ptr %17, align 8
  %19 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %18
  %20 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %19, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  %21 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  br label %22

22:                                               ; preds = %132, %0
  %23 = load i32, ptr %2, align 4, !tbaa !8
  %24 = add nsw i32 %23, -1
  store i32 %24, ptr %2, align 4, !tbaa !8
  %25 = icmp ne i32 %23, 0
  br i1 %25, label %26, label %146

26:                                               ; preds = %22
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #7
  %27 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %28 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %27, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %28, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %30 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %29, ptr noundef nonnull align 4 dereferenceable(4) %6)
  %31 = load i32, ptr %3, align 4, !tbaa !8
  %32 = zext i32 %31 to i64
  %33 = call ptr @llvm.stacksave.p0()
  store ptr %33, ptr %7, align 8
  %34 = alloca %"class.std::__cxx11::basic_string", i64 %32, align 16
  store i64 %32, ptr %8, align 8
  %35 = icmp eq i64 %32, 0
  br i1 %35, label %42, label %36

36:                                               ; preds = %26
  %37 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %34, i64 %32
  br label %38

38:                                               ; preds = %38, %36
  %39 = phi ptr [ %34, %36 ], [ %40, %38 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %39) #7
  %40 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %39, i64 1
  %41 = icmp eq ptr %40, %37
  br i1 %41, label %42, label %38

42:                                               ; preds = %38, %26
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #7
  store i32 0, ptr %9, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %10) #7
  store i32 0, ptr %10, align 4, !tbaa !8
  br label %43

43:                                               ; preds = %116, %42
  %44 = load i32, ptr %10, align 4, !tbaa !8
  %45 = load i32, ptr %3, align 4, !tbaa !8
  %46 = icmp slt i32 %44, %45
  br i1 %46, label %48, label %47

47:                                               ; preds = %43
  store i32 4, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  br label %120

48:                                               ; preds = %43
  %49 = load i32, ptr %10, align 4, !tbaa !8
  %50 = sext i32 %49 to i64
  %51 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %34, i64 %50
  %52 = 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) %51)
          to label %53 unwind label %59

53:                                               ; preds = %48
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #7
  store i32 0, ptr %14, align 4, !tbaa !8
  br label %54

54:                                               ; preds = %112, %53
  %55 = load i32, ptr %14, align 4, !tbaa !8
  %56 = load i32, ptr %4, align 4, !tbaa !8
  %57 = icmp slt i32 %55, %56
  br i1 %57, label %63, label %58

58:                                               ; preds = %54
  store i32 7, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  br label %115

59:                                               ; preds = %48
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %12, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %13, align 4
  br label %119

63:                                               ; preds = %54
  %64 = load i32, ptr %10, align 4, !tbaa !8
  %65 = sext i32 %64 to i64
  %66 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %34, i64 %65
  %67 = load i32, ptr %14, align 4, !tbaa !8
  %68 = sext i32 %67 to i64
  %69 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %66, i64 noundef %68)
          to label %70 unwind label %102

70:                                               ; preds = %63
  %71 = load i8, ptr %69, align 1, !tbaa !11
  %72 = sext i8 %71 to i32
  %73 = icmp eq i32 %72, 46
  br i1 %73, label %74, label %111

74:                                               ; preds = %70
  %75 = load i32, ptr %6, align 4, !tbaa !8
  %76 = load i32, ptr %5, align 4, !tbaa !8
  %77 = mul nsw i32 2, %76
  %78 = icmp slt i32 %75, %77
  br i1 %78, label %79, label %106

79:                                               ; preds = %74
  %80 = load i32, ptr %14, align 4, !tbaa !8
  %81 = load i32, ptr %4, align 4, !tbaa !8
  %82 = sub nsw i32 %81, 1
  %83 = icmp slt i32 %80, %82
  br i1 %83, label %84, label %106

84:                                               ; preds = %79
  %85 = load i32, ptr %10, align 4, !tbaa !8
  %86 = sext i32 %85 to i64
  %87 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %34, i64 %86
  %88 = load i32, ptr %14, align 4, !tbaa !8
  %89 = add nsw i32 %88, 1
  %90 = sext i32 %89 to i64
  %91 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %87, i64 noundef %90)
          to label %92 unwind label %102

92:                                               ; preds = %84
  %93 = load i8, ptr %91, align 1, !tbaa !11
  %94 = sext i8 %93 to i32
  %95 = icmp eq i32 %94, 46
  br i1 %95, label %96, label %106

96:                                               ; preds = %92
  %97 = load i32, ptr %6, align 4, !tbaa !8
  %98 = load i32, ptr %9, align 4, !tbaa !8
  %99 = add nsw i32 %98, %97
  store i32 %99, ptr %9, align 4, !tbaa !8
  %100 = load i32, ptr %14, align 4, !tbaa !8
  %101 = add nsw i32 %100, 1
  store i32 %101, ptr %14, align 4, !tbaa !8
  br label %110

102:                                              ; preds = %84, %63
  %103 = landingpad { ptr, i32 }
          cleanup
  %104 = extractvalue { ptr, i32 } %103, 0
  store ptr %104, ptr %12, align 8
  %105 = extractvalue { ptr, i32 } %103, 1
  store i32 %105, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #7
  br label %119

106:                                              ; preds = %92, %79, %74
  %107 = load i32, ptr %5, align 4, !tbaa !8
  %108 = load i32, ptr %9, align 4, !tbaa !8
  %109 = add nsw i32 %108, %107
  store i32 %109, ptr %9, align 4, !tbaa !8
  br label %110

110:                                              ; preds = %106, %96
  br label %111

111:                                              ; preds = %110, %70
  br label %112

112:                                              ; preds = %111
  %113 = load i32, ptr %14, align 4, !tbaa !8
  %114 = add nsw i32 %113, 1
  store i32 %114, ptr %14, align 4, !tbaa !8
  br label %54, !llvm.loop !12

115:                                              ; preds = %58
  br label %116

116:                                              ; preds = %115
  %117 = load i32, ptr %10, align 4, !tbaa !8
  %118 = add nsw i32 %117, 1
  store i32 %118, ptr %10, align 4, !tbaa !8
  br label %43, !llvm.loop !14

119:                                              ; preds = %102, %59
  call void @llvm.lifetime.end.p0(i64 4, ptr %10) #7
  br label %138

120:                                              ; preds = %47
  %121 = load i32, ptr %9, align 4, !tbaa !8
  %122 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %121)
          to label %123 unwind label %134

123:                                              ; preds = %120
  %124 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %122, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %125 unwind label %134

125:                                              ; preds = %123
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  %126 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %34, i64 %32
  %127 = icmp eq ptr %34, %126
  br i1 %127, label %132, label %128

128:                                              ; preds = %128, %125
  %129 = phi ptr [ %126, %125 ], [ %130, %128 ]
  %130 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %129, i64 -1
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %130) #7
  %131 = icmp eq ptr %130, %34
  br i1 %131, label %132, label %128

132:                                              ; preds = %128, %125
  %133 = load ptr, ptr %7, align 8
  call void @llvm.stackrestore.p0(ptr %133)
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  br label %22, !llvm.loop !15

134:                                              ; preds = %123, %120
  %135 = landingpad { ptr, i32 }
          cleanup
  %136 = extractvalue { ptr, i32 } %135, 0
  store ptr %136, ptr %12, align 8
  %137 = extractvalue { ptr, i32 } %135, 1
  store i32 %137, ptr %13, align 4
  br label %138

138:                                              ; preds = %134, %119
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #7
  %139 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %34, i64 %32
  %140 = icmp eq ptr %34, %139
  br i1 %140, label %145, label %141

141:                                              ; preds = %141, %138
  %142 = phi ptr [ %139, %138 ], [ %143, %141 ]
  %143 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %142, i64 -1
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %143) #7
  %144 = icmp eq ptr %143, %34
  br i1 %144, label %145, label %141

145:                                              ; preds = %141, %138
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %148

146:                                              ; preds = %22
  store i32 0, ptr %1, align 4
  store i32 1, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %147 = load i32, ptr %1, align 4
  ret i32 %147

148:                                              ; preds = %145
  %149 = load ptr, ptr %12, align 8
  %150 = load i32, ptr %13, align 4
  %151 = insertvalue { ptr, i32 } poison, ptr %149, 0
  %152 = insertvalue { ptr, i32 } %151, i32 %150, 1
  resume { ptr, i32 } %152
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 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)) #1

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) #2 align 2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #1

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #5 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)) #6

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

; Function Attrs: nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

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 = { "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 #2 = { 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 #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { nocallback nofree nosync nounwind willreturn }
attributes #5 = { 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 = { 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 #7 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = !{!10, !10, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}
!15 = distinct !{!15, !13}


; 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 i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %7 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %8 = getelementptr i8, ptr %7, i64 -24
  %9 = load i64, ptr %8, align 8
  %10 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %9
  %11 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %10, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %13 = load i32, ptr %1, align 4, !tbaa !8
  %14 = add nsw i32 %13, -1
  store i32 %14, ptr %1, align 4, !tbaa !8
  %.not44 = icmp eq i32 %13, 0
  br i1 %.not44, label %._crit_edge47, label %.lr.ph46

.lr.ph46:                                         ; preds = %0, %.loopexit28
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #7
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #7
  %15 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  %16 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %15, ptr noundef nonnull align 4 dereferenceable(4) %3)
  %17 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %16, ptr noundef nonnull align 4 dereferenceable(4) %4)
  %18 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) %17, ptr noundef nonnull align 4 dereferenceable(4) %5)
  %19 = load i32, ptr %2, align 4, !tbaa !8
  %20 = zext i32 %19 to i64
  %21 = call ptr @llvm.stacksave.p0()
  %22 = alloca %"class.std::__cxx11::basic_string", i64 %20, align 16
  %23 = icmp eq i32 %19, 0
  br i1 %23, label %.loopexit29, label %24

24:                                               ; preds = %.lr.ph46
  %25 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %22, i64 %20
  br label %26

26:                                               ; preds = %26, %24
  %27 = phi ptr [ %22, %24 ], [ %28, %26 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %27) #7
  %28 = getelementptr inbounds i8, ptr %27, i64 32
  %29 = icmp eq ptr %28, %25
  br i1 %29, label %.loopexit29, label %26

.loopexit29:                                      ; preds = %26, %.lr.ph46
  %30 = load i32, ptr %2, align 4, !tbaa !8
  %31 = icmp sgt i32 %30, 0
  br i1 %31, label %.lr.ph41, label %._crit_edge42

._crit_edge42:                                    ; preds = %._crit_edge, %.loopexit29
  %.020.lcssa = phi i32 [ 0, %.loopexit29 ], [ %.121.lcssa, %._crit_edge ]
  %32 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %.020.lcssa)
          to label %71 unwind label %80

.lr.ph41:                                         ; preds = %.loopexit29, %._crit_edge
  %indvars.iv = phi i64 [ %indvars.iv.next, %._crit_edge ], [ 0, %.loopexit29 ]
  %.02038 = phi i32 [ %.121.lcssa, %._crit_edge ], [ 0, %.loopexit29 ]
  %33 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %22, i64 %indvars.iv
  %34 = 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) %33)
          to label %.preheader26 unwind label %40

.preheader26:                                     ; preds = %.lr.ph41
  %35 = load i32, ptr %3, align 4, !tbaa !8
  %36 = icmp sgt i32 %35, 0
  br i1 %36, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %67, %.preheader26
  %.121.lcssa = phi i32 [ %.02038, %.preheader26 ], [ %.2, %67 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %37 = load i32, ptr %2, align 4, !tbaa !8
  %38 = sext i32 %37 to i64
  %39 = icmp slt i64 %indvars.iv.next, %38
  br i1 %39, label %.lr.ph41, label %._crit_edge42, !llvm.loop !11

40:                                               ; preds = %.lr.ph41
  %41 = landingpad { ptr, i32 }
          cleanup
  br label %82

.lr.ph:                                           ; preds = %.preheader26, %67
  %.037 = phi i32 [ %68, %67 ], [ 0, %.preheader26 ]
  %.12136 = phi i32 [ %.2, %67 ], [ %.02038, %.preheader26 ]
  %42 = sext i32 %.037 to i64
  %43 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %33, i64 noundef %42)
  %44 = load i8, ptr %43, align 1, !tbaa !13
  %45 = icmp eq i8 %44, 46
  br i1 %45, label %46, label %67

46:                                               ; preds = %.lr.ph
  %47 = load i32, ptr %5, align 4, !tbaa !8
  %48 = load i32, ptr %4, align 4, !tbaa !8
  %49 = shl nsw i32 %48, 1
  %50 = icmp slt i32 %47, %49
  br i1 %50, label %51, label %64

51:                                               ; preds = %46
  %52 = load i32, ptr %3, align 4, !tbaa !8
  %53 = add nsw i32 %52, -1
  %54 = icmp slt i32 %.037, %53
  br i1 %54, label %55, label %64

55:                                               ; preds = %51
  %56 = add nsw i32 %.037, 1
  %57 = sext i32 %56 to i64
  %58 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %33, i64 noundef %57)
  %59 = load i8, ptr %58, align 1, !tbaa !13
  %60 = icmp eq i8 %59, 46
  br i1 %60, label %61, label %._crit_edge57

._crit_edge57:                                    ; preds = %55
  %.pre = load i32, ptr %4, align 4, !tbaa !8
  br label %64

61:                                               ; preds = %55
  %62 = load i32, ptr %5, align 4, !tbaa !8
  %63 = add nsw i32 %62, %.12136
  br label %67

64:                                               ; preds = %._crit_edge57, %51, %46
  %65 = phi i32 [ %.pre, %._crit_edge57 ], [ %48, %51 ], [ %48, %46 ]
  %66 = add nsw i32 %65, %.12136
  br label %67

67:                                               ; preds = %.lr.ph, %64, %61
  %.2 = phi i32 [ %63, %61 ], [ %66, %64 ], [ %.12136, %.lr.ph ]
  %.1 = phi i32 [ %56, %61 ], [ %.037, %64 ], [ %.037, %.lr.ph ]
  %68 = add nsw i32 %.1, 1
  %69 = load i32, ptr %3, align 4, !tbaa !8
  %70 = icmp slt i32 %68, %69
  br i1 %70, label %.lr.ph, label %._crit_edge, !llvm.loop !14

71:                                               ; preds = %._crit_edge42
  %72 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %32, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %73 unwind label %80

73:                                               ; preds = %71
  br i1 %23, label %.loopexit28, label %.preheader27.preheader

.preheader27.preheader:                           ; preds = %73
  %74 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %22, i64 %20
  br label %.preheader27

.preheader27:                                     ; preds = %.preheader27.preheader, %.preheader27
  %75 = phi ptr [ %76, %.preheader27 ], [ %74, %.preheader27.preheader ]
  %76 = getelementptr inbounds i8, ptr %75, i64 -32
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %76) #7
  %77 = icmp eq ptr %76, %22
  br i1 %77, label %.loopexit28, label %.preheader27

.loopexit28:                                      ; preds = %.preheader27, %73
  call void @llvm.stackrestore.p0(ptr %21)
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  %78 = load i32, ptr %1, align 4, !tbaa !8
  %79 = add nsw i32 %78, -1
  store i32 %79, ptr %1, align 4, !tbaa !8
  %.not = icmp eq i32 %78, 0
  br i1 %.not, label %._crit_edge47, label %.lr.ph46, !llvm.loop !15

80:                                               ; preds = %71, %._crit_edge42
  %81 = landingpad { ptr, i32 }
          cleanup
  br label %82

82:                                               ; preds = %80, %40
  %.pn = phi { ptr, i32 } [ %41, %40 ], [ %81, %80 ]
  br i1 %23, label %.loopexit, label %.preheader.preheader

.preheader.preheader:                             ; preds = %82
  %83 = getelementptr inbounds %"class.std::__cxx11::basic_string", ptr %22, i64 %20
  br label %.preheader

.preheader:                                       ; preds = %.preheader.preheader, %.preheader
  %84 = phi ptr [ %85, %.preheader ], [ %83, %.preheader.preheader ]
  %85 = getelementptr inbounds i8, ptr %84, i64 -32
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %85) #7
  %86 = icmp eq ptr %85, %22
  br i1 %86, label %.loopexit, label %.preheader

.loopexit:                                        ; preds = %.preheader, %82
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn

._crit_edge47:                                    ; preds = %.loopexit28, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0
}

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #3

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare ptr @llvm.stacksave.p0() #4

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #2 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 #1

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 #2 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #3

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #1

; 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 #5 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)) #6

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn
declare void @llvm.stackrestore.p0(ptr) #4

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 = { "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 #2 = { 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 #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress nocallback nofree nosync nounwind willreturn }
attributes #5 = { 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 = { 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 #7 = { 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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!10, !10, i64 0}
!14 = distinct !{!14, !12}
!15 = distinct !{!15, !12}


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