; LLVM IR from DionysiosB/CodeForces :: 0900-0999 (962B-StudentsInRailwayCarriage)

; 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 i64, 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
  %10 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  %11 = 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)
  %12 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) %11, ptr noundef nonnull align 8 dereferenceable(8) %3)
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) %12, ptr noundef nonnull align 8 dereferenceable(8) %4)
  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
  %14 = 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) %5)
          to label %15 unwind label %24

15:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  %16 = load i64, ptr %3, align 8, !tbaa !5
  %17 = load i64, ptr %4, align 8, !tbaa !5
  %18 = add nsw i64 %16, %17
  store i64 %18, 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 %19

19:                                               ; preds = %124, %15
  %20 = load i64, ptr %9, align 8, !tbaa !5
  %21 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %5) #6
  %22 = icmp ult i64 %20, %21
  br i1 %22, label %28, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %127

24:                                               ; preds = %0
  %25 = landingpad { ptr, i32 }
          cleanup
  %26 = extractvalue { ptr, i32 } %25, 0
  store ptr %26, ptr %6, align 8
  %27 = extractvalue { ptr, i32 } %25, 1
  store i32 %27, ptr %7, align 4
  br label %143

28:                                               ; preds = %19
  %29 = load i64, ptr %9, align 8, !tbaa !5
  %30 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %29)
          to label %31 unwind label %36

31:                                               ; preds = %28
  %32 = load i8, ptr %30, align 1, !tbaa !9
  %33 = sext i8 %32 to i32
  %34 = icmp eq i32 %33, 42
  br i1 %34, label %35, label %40

35:                                               ; preds = %31
  br label %124

36:                                               ; preds = %115, %104, %98, %87, %79, %66, %51, %43, %28
  %37 = landingpad { ptr, i32 }
          cleanup
  %38 = extractvalue { ptr, i32 } %37, 0
  store ptr %38, ptr %6, align 8
  %39 = extractvalue { ptr, i32 } %37, 1
  store i32 %39, ptr %7, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %142

40:                                               ; preds = %31
  %41 = load i64, ptr %9, align 8, !tbaa !5
  %42 = icmp eq i64 %41, 0
  br i1 %42, label %59, label %43

43:                                               ; preds = %40
  %44 = load i64, ptr %9, align 8, !tbaa !5
  %45 = sub nsw i64 %44, 1
  %46 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %45)
          to label %47 unwind label %36

47:                                               ; preds = %43
  %48 = load i8, ptr %46, align 1, !tbaa !9
  %49 = sext i8 %48 to i32
  %50 = icmp ne i32 %49, 97
  br i1 %50, label %51, label %87

51:                                               ; preds = %47
  %52 = load i64, ptr %9, align 8, !tbaa !5
  %53 = sub nsw i64 %52, 1
  %54 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %53)
          to label %55 unwind label %36

55:                                               ; preds = %51
  %56 = load i8, ptr %54, align 1, !tbaa !9
  %57 = sext i8 %56 to i32
  %58 = icmp ne i32 %57, 98
  br i1 %58, label %59, label %87

59:                                               ; preds = %55, %40
  %60 = load i64, ptr %3, align 8, !tbaa !5
  %61 = load i64, ptr %4, align 8, !tbaa !5
  %62 = icmp sge i64 %60, %61
  br i1 %62, label %63, label %72

63:                                               ; preds = %59
  %64 = load i64, ptr %3, align 8, !tbaa !5
  %65 = icmp sgt i64 %64, 0
  br i1 %65, label %66, label %72

66:                                               ; preds = %63
  %67 = load i64, ptr %9, align 8, !tbaa !5
  %68 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %67)
          to label %69 unwind label %36

69:                                               ; preds = %66
  store i8 97, ptr %68, align 1, !tbaa !9
  %70 = load i64, ptr %3, align 8, !tbaa !5
  %71 = add nsw i64 %70, -1
  store i64 %71, ptr %3, align 8, !tbaa !5
  br label %86

72:                                               ; preds = %63, %59
  %73 = load i64, ptr %4, align 8, !tbaa !5
  %74 = load i64, ptr %3, align 8, !tbaa !5
  %75 = icmp sge i64 %73, %74
  br i1 %75, label %76, label %85

76:                                               ; preds = %72
  %77 = load i64, ptr %4, align 8, !tbaa !5
  %78 = icmp sgt i64 %77, 0
  br i1 %78, label %79, label %85

79:                                               ; preds = %76
  %80 = load i64, ptr %9, align 8, !tbaa !5
  %81 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %80)
          to label %82 unwind label %36

82:                                               ; preds = %79
  store i8 98, ptr %81, align 1, !tbaa !9
  %83 = load i64, ptr %4, align 8, !tbaa !5
  %84 = add nsw i64 %83, -1
  store i64 %84, ptr %4, align 8, !tbaa !5
  br label %85

85:                                               ; preds = %82, %76, %72
  br label %86

86:                                               ; preds = %85, %69
  br label %123

87:                                               ; preds = %55, %47
  %88 = load i64, ptr %9, align 8, !tbaa !5
  %89 = sub nsw i64 %88, 1
  %90 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %89)
          to label %91 unwind label %36

91:                                               ; preds = %87
  %92 = load i8, ptr %90, align 1, !tbaa !9
  %93 = sext i8 %92 to i32
  %94 = icmp ne i32 %93, 97
  br i1 %94, label %95, label %104

95:                                               ; preds = %91
  %96 = load i64, ptr %3, align 8, !tbaa !5
  %97 = icmp sgt i64 %96, 0
  br i1 %97, label %98, label %104

98:                                               ; preds = %95
  %99 = load i64, ptr %9, align 8, !tbaa !5
  %100 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %99)
          to label %101 unwind label %36

101:                                              ; preds = %98
  store i8 97, ptr %100, align 1, !tbaa !9
  %102 = load i64, ptr %3, align 8, !tbaa !5
  %103 = add nsw i64 %102, -1
  store i64 %103, ptr %3, align 8, !tbaa !5
  br label %122

104:                                              ; preds = %95, %91
  %105 = load i64, ptr %9, align 8, !tbaa !5
  %106 = sub nsw i64 %105, 1
  %107 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %106)
          to label %108 unwind label %36

108:                                              ; preds = %104
  %109 = load i8, ptr %107, align 1, !tbaa !9
  %110 = sext i8 %109 to i32
  %111 = icmp ne i32 %110, 98
  br i1 %111, label %112, label %121

112:                                              ; preds = %108
  %113 = load i64, ptr %4, align 8, !tbaa !5
  %114 = icmp sgt i64 %113, 0
  br i1 %114, label %115, label %121

115:                                              ; preds = %112
  %116 = load i64, ptr %9, align 8, !tbaa !5
  %117 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %5, i64 noundef %116)
          to label %118 unwind label %36

118:                                              ; preds = %115
  store i8 98, ptr %117, align 1, !tbaa !9
  %119 = load i64, ptr %4, align 8, !tbaa !5
  %120 = add nsw i64 %119, -1
  store i64 %120, ptr %4, align 8, !tbaa !5
  br label %121

121:                                              ; preds = %118, %112, %108
  br label %122

122:                                              ; preds = %121, %101
  br label %123

123:                                              ; preds = %122, %86
  br label %124

124:                                              ; preds = %123, %35
  %125 = load i64, ptr %9, align 8, !tbaa !5
  %126 = add nsw i64 %125, 1
  store i64 %126, ptr %9, align 8, !tbaa !5
  br label %19, !llvm.loop !10

127:                                              ; preds = %23
  %128 = load i64, ptr %8, align 8, !tbaa !5
  %129 = load i64, ptr %3, align 8, !tbaa !5
  %130 = sub nsw i64 %128, %129
  %131 = load i64, ptr %4, align 8, !tbaa !5
  %132 = sub nsw i64 %130, %131
  %133 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %132)
          to label %134 unwind label %138

134:                                              ; preds = %127
  %135 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %133, ptr noundef @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %136 unwind label %138

136:                                              ; preds = %134
  store i32 0, ptr %1, align 4
  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 @llvm.lifetime.end.p0(i64 8, 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
  %137 = load i32, ptr %1, align 4
  ret i32 %137

138:                                              ; preds = %134, %127
  %139 = landingpad { ptr, i32 }
          cleanup
  %140 = extractvalue { ptr, i32 } %139, 0
  store ptr %140, ptr %6, align 8
  %141 = extractvalue { ptr, i32 } %139, 1
  store i32 %141, ptr %7, align 4
  br label %142

142:                                              ; preds = %138, %36
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  br label %143

143:                                              ; preds = %142, %24
  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 @llvm.lifetime.end.p0(i64 8, 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 %144

144:                                              ; preds = %143
  %145 = load ptr, ptr %6, align 8
  %146 = load i32, ptr %7, align 4
  %147 = insertvalue { ptr, i32 } poison, ptr %145, 0
  %148 = insertvalue { ptr, i32 } %147, i32 %146, 1
  resume { ptr, i32 } %148
}

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

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

; 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)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 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 i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #4 align 2

; 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) #4 align 2

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

; Function Attrs: mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8), i64 noundef) #3 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) #3 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 #4 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 = { "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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { 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 #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"}


; 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 i64, align 8
  %4 = alloca %"class.std::__cxx11::basic_string", align 8
  %5 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  %6 = 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)
  %7 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) %6, ptr noundef nonnull align 8 dereferenceable(8) %2)
  %8 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERl(ptr noundef nonnull align 8 dereferenceable(16) %7, ptr noundef nonnull align 8 dereferenceable(8) %3)
  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) %4)
          to label %10 unwind label %39

10:                                               ; preds = %0
  %11 = load i64, ptr %2, align 8, !tbaa !5
  %12 = load i64, ptr %3, align 8, !tbaa !5
  %13 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  %.not30 = icmp eq i64 %13, 0
  br i1 %.not30, label %._crit_edge, label %.lr.ph.preheader

.lr.ph.preheader:                                 ; preds = %10
  %14 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 0)
  %15 = load i8, ptr %14, align 1, !tbaa !9
  %16 = icmp eq i8 %15, 42
  br i1 %16, label %31, label %17

17:                                               ; preds = %.lr.ph.preheader
  %.pre = load i64, ptr %2, align 8
  %.pre35 = load i64, ptr %3, align 8
  %18 = icmp sge i64 %.pre, %.pre35
  %19 = icmp sgt i64 %.pre, 0
  %or.cond.peel = and i1 %19, %18
  br i1 %or.cond.peel, label %27, label %20

20:                                               ; preds = %17
  %21 = icmp sge i64 %.pre35, %.pre
  %22 = icmp sgt i64 %.pre35, 0
  %or.cond3.peel = and i1 %21, %22
  br i1 %or.cond3.peel, label %23, label %31

23:                                               ; preds = %20
  %24 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 0)
  store i8 98, ptr %24, align 1, !tbaa !9
  %25 = load i64, ptr %3, align 8, !tbaa !5
  %26 = add nsw i64 %25, -1
  store i64 %26, ptr %3, align 8, !tbaa !5
  br label %31

27:                                               ; preds = %17
  %28 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef 0)
  store i8 97, ptr %28, align 1, !tbaa !9
  %29 = load i64, ptr %2, align 8, !tbaa !5
  %30 = add nsw i64 %29, -1
  store i64 %30, ptr %2, align 8, !tbaa !5
  br label %31

31:                                               ; preds = %27, %23, %20, %.lr.ph.preheader
  %32 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  %33 = icmp ugt i64 %32, 1
  br i1 %33, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %87, %31, %10
  %34 = load i64, ptr %2, align 8, !tbaa !5
  %35 = load i64, ptr %3, align 8, !tbaa !5
  %.neg27 = add i64 %12, %11
  %36 = add i64 %34, %35
  %37 = sub i64 %.neg27, %36
  %38 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEl(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i64 noundef %37)
          to label %91 unwind label %94

39:                                               ; preds = %0
  %40 = landingpad { ptr, i32 }
          cleanup
  br label %96

.lr.ph:                                           ; preds = %31, %87
  %.028 = phi i64 [ %88, %87 ], [ 1, %31 ]
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %.028)
  %42 = load i8, ptr %41, align 1, !tbaa !9
  %43 = icmp eq i8 %42, 42
  br i1 %43, label %87, label %44

44:                                               ; preds = %.lr.ph
  %45 = add nsw i64 %.028, -1
  %46 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %45)
  %47 = load i8, ptr %46, align 1, !tbaa !9
  %.not = icmp eq i8 %47, 97
  br i1 %.not, label %67, label %48

48:                                               ; preds = %44
  %49 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %45)
  %50 = load i8, ptr %49, align 1, !tbaa !9
  %.not25 = icmp eq i8 %50, 98
  br i1 %.not25, label %67, label %51

51:                                               ; preds = %48
  %52 = load i64, ptr %2, align 8
  %53 = load i64, ptr %3, align 8
  %54 = icmp sge i64 %52, %53
  %55 = icmp sgt i64 %52, 0
  %or.cond = and i1 %55, %54
  br i1 %or.cond, label %56, label %60

56:                                               ; preds = %51
  %57 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %.028)
  store i8 97, ptr %57, align 1, !tbaa !9
  %58 = load i64, ptr %2, align 8, !tbaa !5
  %59 = add nsw i64 %58, -1
  store i64 %59, ptr %2, align 8, !tbaa !5
  br label %87

60:                                               ; preds = %51
  %61 = icmp sge i64 %53, %52
  %62 = icmp sgt i64 %53, 0
  %or.cond3 = and i1 %61, %62
  br i1 %or.cond3, label %63, label %87

63:                                               ; preds = %60
  %64 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %.028)
  store i8 98, ptr %64, align 1, !tbaa !9
  %65 = load i64, ptr %3, align 8, !tbaa !5
  %66 = add nsw i64 %65, -1
  store i64 %66, ptr %3, align 8, !tbaa !5
  br label %87

67:                                               ; preds = %48, %44
  %68 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %45)
  %69 = load i8, ptr %68, align 1, !tbaa !9
  %70 = icmp ne i8 %69, 97
  %71 = load i64, ptr %2, align 8
  %72 = icmp sgt i64 %71, 0
  %or.cond5 = select i1 %70, i1 %72, i1 false
  br i1 %or.cond5, label %73, label %77

73:                                               ; preds = %67
  %74 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %.028)
  store i8 97, ptr %74, align 1, !tbaa !9
  %75 = load i64, ptr %2, align 8, !tbaa !5
  %76 = add nsw i64 %75, -1
  store i64 %76, ptr %2, align 8, !tbaa !5
  br label %87

77:                                               ; preds = %67
  %78 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %45)
  %79 = load i8, ptr %78, align 1, !tbaa !9
  %80 = icmp ne i8 %79, 98
  %81 = load i64, ptr %3, align 8
  %82 = icmp sgt i64 %81, 0
  %or.cond7 = select i1 %80, i1 %82, i1 false
  br i1 %or.cond7, label %83, label %87

83:                                               ; preds = %77
  %84 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %4, i64 noundef %.028)
  store i8 98, ptr %84, align 1, !tbaa !9
  %85 = load i64, ptr %3, align 8, !tbaa !5
  %86 = add nsw i64 %85, -1
  store i64 %86, ptr %3, align 8, !tbaa !5
  br label %87

87:                                               ; preds = %60, %63, %56, %77, %83, %73, %.lr.ph
  %88 = add nuw nsw i64 %.028, 1
  %89 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %4) #6
  %90 = icmp ult i64 %88, %89
  br i1 %90, label %.lr.ph, label %._crit_edge, !llvm.loop !10

91:                                               ; preds = %._crit_edge
  %92 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEPFRSoS_E(ptr noundef nonnull align 8 dereferenceable(8) %38, ptr noundef nonnull @_ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_)
          to label %93 unwind label %94

93:                                               ; preds = %91
  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 @llvm.lifetime.end.p0(i64 8, 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
  ret i32 0

94:                                               ; preds = %91, %._crit_edge
  %95 = landingpad { ptr, i32 }
          cleanup
  br label %96

96:                                               ; preds = %94, %39
  %.pn = phi { ptr, i32 } [ %95, %94 ], [ %40, %39 ]
  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 @llvm.lifetime.end.p0(i64 8, 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
}

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

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

; 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 #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #4 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 i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #4 align 2

; 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 #4 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #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 #3 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 #3 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 #4 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 = { "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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #3 = { 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 #4 = { 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 #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, !12}
!11 = !{!"llvm.loop.mustprogress"}
!12 = !{!"llvm.loop.peeled.count", i32 1}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopFullUnrollPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,ReassociatePass,SCCPPass,SROAPass,SimplifyCFGPass,TailCallElimPass