; LLVM IR from DionysiosB/CodeForces :: 0500-0599 (593B-AntonAndLines)

; 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::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"struct.std::pair" = type { i64, i64 }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@.str = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"class.std::allocator", align 1
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i32, align 4
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca %"struct.std::pair", align 8
  %13 = alloca i64, align 8
  %14 = alloca i64, align 8
  %15 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %16 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %17 = alloca i32, align 4
  %18 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #6
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #6
  %20 = load i64, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr %4) #6
  call void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  invoke void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %20, ptr noundef nonnull align 1 dereferenceable(1) %4)
          to label %21 unwind label %30

21:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #6
  %22 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %7, ptr noundef %8)
          to label %23 unwind label %34

23:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #6
  store i32 0, ptr %9, align 4, !tbaa !9
  br label %24

24:                                               ; preds = %56, %23
  %25 = load i32, ptr %9, align 4, !tbaa !9
  %26 = sext i32 %25 to i64
  %27 = load i64, ptr %2, align 8, !tbaa !5
  %28 = icmp slt i64 %26, %27
  br i1 %28, label %38, label %29

29:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %68

30:                                               ; preds = %0
  %31 = landingpad { ptr, i32 }
          cleanup
  %32 = extractvalue { ptr, i32 } %31, 0
  store ptr %32, ptr %5, align 8
  %33 = extractvalue { ptr, i32 } %31, 1
  store i32 %33, ptr %6, align 4
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %4) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr %4) #6
  br label %130

34:                                               ; preds = %124, %68, %21
  %35 = landingpad { ptr, i32 }
          cleanup
  %36 = extractvalue { ptr, i32 } %35, 0
  store ptr %36, ptr %5, align 8
  %37 = extractvalue { ptr, i32 } %35, 1
  store i32 %37, ptr %6, align 4
  br label %129

38:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  %39 = invoke i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %10, ptr noundef %11)
          to label %40 unwind label %59

40:                                               ; preds = %38
  call void @llvm.lifetime.start.p0(i64 16, ptr %12) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  %41 = load i64, ptr %10, align 8, !tbaa !5
  %42 = load i64, ptr %7, align 8, !tbaa !5
  %43 = mul nsw i64 %41, %42
  %44 = load i64, ptr %11, align 8, !tbaa !5
  %45 = add nsw i64 %43, %44
  store i64 %45, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  %46 = load i64, ptr %10, align 8, !tbaa !5
  %47 = load i64, ptr %8, align 8, !tbaa !5
  %48 = mul nsw i64 %46, %47
  %49 = load i64, ptr %11, align 8, !tbaa !5
  %50 = add nsw i64 %48, %49
  store i64 %50, ptr %14, align 8, !tbaa !5
  invoke void @_ZNSt4pairIxxEC2IxxTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 8 dereferenceable(16) %12, ptr noundef nonnull align 8 dereferenceable(8) %13, ptr noundef nonnull align 8 dereferenceable(8) %14)
          to label %51 unwind label %63

51:                                               ; preds = %40
  %52 = load i32, ptr %9, align 4, !tbaa !9
  %53 = sext i32 %52 to i64
  %54 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %53) #6
  %55 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt4pairIxxEaSEOS0_(ptr noundef nonnull align 8 dereferenceable(16) %54, ptr noundef nonnull align 8 dereferenceable(16) %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  br label %56

56:                                               ; preds = %51
  %57 = load i32, ptr %9, align 4, !tbaa !9
  %58 = add nsw i32 %57, 1
  store i32 %58, ptr %9, align 4, !tbaa !9
  br label %24, !llvm.loop !11

59:                                               ; preds = %38
  %60 = landingpad { ptr, i32 }
          cleanup
  %61 = extractvalue { ptr, i32 } %60, 0
  store ptr %61, ptr %5, align 8
  %62 = extractvalue { ptr, i32 } %60, 1
  store i32 %62, ptr %6, align 4
  br label %67

63:                                               ; preds = %40
  %64 = landingpad { ptr, i32 }
          cleanup
  %65 = extractvalue { ptr, i32 } %64, 0
  store ptr %65, ptr %5, align 8
  %66 = extractvalue { ptr, i32 } %64, 1
  store i32 %66, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr %12) #6
  br label %67

67:                                               ; preds = %63, %59
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #6
  br label %129

68:                                               ; preds = %29
  %69 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  %70 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %15, i32 0, i32 0
  store ptr %69, ptr %70, align 8
  %71 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  %72 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  store ptr %71, ptr %72, align 8
  %73 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %15, i32 0, i32 0
  %74 = load ptr, ptr %73, align 8
  %75 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %16, i32 0, i32 0
  %76 = load ptr, ptr %75, align 8
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %74, ptr %76)
          to label %77 unwind label %34

77:                                               ; preds = %68
  call void @llvm.lifetime.start.p0(i64 4, ptr %17) #6
  store i32 1, ptr %17, align 4, !tbaa !9
  br label %78

78:                                               ; preds = %119, %77
  %79 = load i32, ptr %17, align 4, !tbaa !9
  %80 = sext i32 %79 to i64
  %81 = load i64, ptr %2, align 8, !tbaa !5
  %82 = icmp slt i64 %80, %81
  br i1 %82, label %84, label %83

83:                                               ; preds = %78
  store i32 5, ptr %18, align 4
  br label %122

84:                                               ; preds = %78
  %85 = load i32, ptr %17, align 4, !tbaa !9
  %86 = sub nsw i32 %85, 1
  %87 = sext i32 %86 to i64
  %88 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %87) #6
  %89 = getelementptr inbounds %"struct.std::pair", ptr %88, i32 0, i32 0
  %90 = load i64, ptr %89, align 8, !tbaa !13
  %91 = load i32, ptr %17, align 4, !tbaa !9
  %92 = sext i32 %91 to i64
  %93 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %92) #6
  %94 = getelementptr inbounds %"struct.std::pair", ptr %93, i32 0, i32 0
  %95 = load i64, ptr %94, align 8, !tbaa !13
  %96 = icmp eq i64 %90, %95
  br i1 %96, label %97, label %98

97:                                               ; preds = %84
  br label %119

98:                                               ; preds = %84
  %99 = load i32, ptr %17, align 4, !tbaa !9
  %100 = sub nsw i32 %99, 1
  %101 = sext i32 %100 to i64
  %102 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %101) #6
  %103 = getelementptr inbounds %"struct.std::pair", ptr %102, i32 0, i32 1
  %104 = load i64, ptr %103, align 8, !tbaa !15
  %105 = load i32, ptr %17, align 4, !tbaa !9
  %106 = sext i32 %105 to i64
  %107 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %106) #6
  %108 = getelementptr inbounds %"struct.std::pair", ptr %107, i32 0, i32 1
  %109 = load i64, ptr %108, align 8, !tbaa !15
  %110 = icmp sgt i64 %104, %109
  br i1 %110, label %111, label %118

111:                                              ; preds = %98
  %112 = invoke i32 @puts(ptr noundef @.str.2)
          to label %113 unwind label %114

113:                                              ; preds = %111
  store i32 0, ptr %1, align 4
  store i32 1, ptr %18, align 4
  br label %122

114:                                              ; preds = %111
  %115 = landingpad { ptr, i32 }
          cleanup
  %116 = extractvalue { ptr, i32 } %115, 0
  store ptr %116, ptr %5, align 8
  %117 = extractvalue { ptr, i32 } %115, 1
  store i32 %117, ptr %6, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #6
  br label %129

118:                                              ; preds = %98
  br label %119

119:                                              ; preds = %118, %97
  %120 = load i32, ptr %17, align 4, !tbaa !9
  %121 = add nsw i32 %120, 1
  store i32 %121, ptr %17, align 4, !tbaa !9
  br label %78, !llvm.loop !16

122:                                              ; preds = %113, %83
  call void @llvm.lifetime.end.p0(i64 4, ptr %17) #6
  %123 = load i32, ptr %18, align 4
  switch i32 %123, label %127 [
    i32 5, label %124
  ]

124:                                              ; preds = %122
  %125 = invoke i32 @puts(ptr noundef @.str.3)
          to label %126 unwind label %34

126:                                              ; preds = %124
  store i32 0, ptr %1, align 4
  store i32 1, ptr %18, align 4
  br label %127

127:                                              ; preds = %126, %122
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  %128 = load i32, ptr %1, align 4
  ret i32 %128

129:                                              ; preds = %114, %67, %34
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #6
  br label %130

130:                                              ; preds = %129, %30
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #6
  br label %131

131:                                              ; preds = %130
  %132 = load ptr, ptr %5, align 8
  %133 = load i32, ptr %6, align 4
  %134 = insertvalue { ptr, i32 } poison, ptr %132, 0
  %135 = insertvalue { ptr, i32 } %134, i32 %133, 1
  resume { ptr, i32 } %135
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; 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 dso_local void @_ZNSt4pairIxxEC2IxxTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt4pairIxxEaSEOS0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) #3 align 2

declare i32 @puts(ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !6, i64 0}
!14 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!15 = !{!14, !6, i64 8}
!16 = distinct !{!16, !12}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long long, long long>, std::allocator<std::pair<long long, long long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator" = type { i8 }
%"struct.std::pair" = type { i64, i64 }

@.str = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [11 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca %"class.std::allocator", align 1
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca %"struct.std::pair", align 8
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #6
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #6
  %12 = load i64, ptr %1, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %3) #6
  call void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  invoke void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %12, ptr noundef nonnull align 1 dereferenceable(1) %3)
          to label %13 unwind label %20

13:                                               ; preds = %0
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #6
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %4, ptr noundef nonnull %5)
  %15 = load i64, ptr %1, align 8, !tbaa !5
  %16 = icmp sgt i64 %15, 0
  br i1 %16, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %13
  %17 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  %18 = call ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  invoke void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr %17, ptr %18)
          to label %.preheader unwind label %22

.preheader:                                       ; preds = %._crit_edge
  %19 = load i64, ptr %1, align 8, !tbaa !5
  %.not22 = icmp sgt i64 %19, 1
  br i1 %.not22, label %.lr.ph24, label %.critedge

20:                                               ; preds = %0
  %21 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %3) #6
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %3) #6
  br label %54

22:                                               ; preds = %._crit_edge
  %23 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  br label %54

.lr.ph:                                           ; preds = %13, %.lr.ph
  %indvars.iv = phi i64 [ %indvars.iv.next, %.lr.ph ], [ 0, %13 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #6
  %24 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %6, ptr noundef nonnull %7)
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %8) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #6
  %25 = load i64, ptr %6, align 8, !tbaa !5
  %26 = load i64, ptr %4, align 8, !tbaa !5
  %27 = mul nsw i64 %26, %25
  %28 = load i64, ptr %7, align 8, !tbaa !5
  %29 = add nsw i64 %27, %28
  store i64 %29, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #6
  %30 = load i64, ptr %5, align 8, !tbaa !5
  %31 = mul nsw i64 %30, %25
  %32 = add nsw i64 %31, %28
  store i64 %32, ptr %10, align 8, !tbaa !5
  call void @_ZNSt4pairIxxEC2IxxTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 8 dereferenceable(16) %8, ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %10)
  %33 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv) #6
  %34 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt4pairIxxEaSEOS0_(ptr noundef nonnull align 8 dereferenceable(16) %33, ptr noundef nonnull align 8 dereferenceable(16) %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #6
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %8) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %35 = load i64, ptr %1, align 8, !tbaa !5
  %36 = icmp sgt i64 %35, %indvars.iv.next
  br i1 %36, label %.lr.ph, label %._crit_edge, !llvm.loop !9

.lr.ph24:                                         ; preds = %.preheader, %51
  %indvars.iv26 = phi i64 [ %indvars.iv.next27, %51 ], [ 1, %.preheader ]
  %37 = add nsw i64 %indvars.iv26, -1
  %38 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %37) #6
  %39 = load i64, ptr %38, align 8, !tbaa !11
  %40 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv26) #6
  %41 = load i64, ptr %40, align 8, !tbaa !11
  %42 = icmp eq i64 %39, %41
  br i1 %42, label %51, label %43

43:                                               ; preds = %.lr.ph24
  %44 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %37) #6
  %45 = getelementptr inbounds i8, ptr %44, i64 8
  %46 = load i64, ptr %45, align 8, !tbaa !13
  %47 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %indvars.iv26) #6
  %48 = getelementptr inbounds i8, ptr %47, i64 8
  %49 = load i64, ptr %48, align 8, !tbaa !13
  %50 = icmp sgt i64 %46, %49
  br i1 %50, label %.critedge, label %51

51:                                               ; preds = %43, %.lr.ph24
  %indvars.iv.next27 = add nuw nsw i64 %indvars.iv26, 1
  %52 = load i64, ptr %1, align 8, !tbaa !5
  %.not = icmp sgt i64 %52, %indvars.iv.next27
  br i1 %.not, label %.lr.ph24, label %.critedge, !llvm.loop !14

.critedge:                                        ; preds = %51, %43, %.preheader
  %.str.2.sink = phi ptr [ @.str.3, %.preheader ], [ @.str.2, %43 ], [ @.str.3, %51 ]
  %53 = call i32 @puts(ptr noundef nonnull dereferenceable(1) %.str.2.sink)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #6
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  ret i32 0

54:                                               ; preds = %22, %20
  %.pn = phi { ptr, i32 } [ %23, %22 ], [ %21, %20 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn
}

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

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaISt4pairIxxEEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EEC2EmRKS2_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #4 align 2

declare i32 @__gxx_personality_v0(...)

; 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 dso_local void @_ZNSt4pairIxxEC2IxxTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS3_OS4_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIxxESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt4pairIxxEaSEOS0_(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #3 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZSt4sortIN9__gnu_cxx17__normal_iteratorIPSt4pairIxxESt6vectorIS3_SaIS3_EEEEEvT_S9_(ptr, ptr) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE5beginEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local ptr @_ZNSt6vectorISt4pairIxxESaIS1_EE3endEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #3 align 2

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIxxESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #3 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorISt4pairIxxEED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #3 align 2

attributes #0 = { mustprogress norecurse uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #4 = { mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #5 = { 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 long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !6, i64 0}
!12 = !{!"_ZTSSt4pairIxxE", !6, i64 0, !6, i64 8}
!13 = !{!12, !6, i64 8}
!14 = distinct !{!14, !10}


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