; LLVM IR from DionysiosB/CodeForces :: 1100-1199 (1178D-PrimeGraph)

; 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>, std::allocator<std::pair<long, long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long, long>, std::allocator<std::pair<long, long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long, long>, std::allocator<std::pair<long, long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long, long>, std::allocator<std::pair<long, long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i64, i64 }
%"struct.std::pair.0" = type { i32, i64 }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z7isPrimel(i64 noundef) #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::vector", align 8
  %4 = alloca %"struct.std::pair", align 8
  %5 = alloca %"struct.std::pair.0", align 8
  %6 = alloca i32, align 4
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i64, align 8
  %10 = alloca %"struct.std::pair", align 8
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  %13 = alloca i32, align 4
  %14 = alloca %"struct.std::pair", align 8
  %15 = alloca i64, align 8
  %16 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #5
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  call void @llvm.lifetime.start.p0(i64 24, ptr %3) #5
  call void @_ZNSt6vectorISt4pairIllESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr %5) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 1, ptr %6, align 4, !tbaa !5
  %18 = invoke { i32, i64 } @_ZSt9make_pairIiRlESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %6, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %19 unwind label %31

19:                                               ; preds = %0
  %20 = getelementptr inbounds { i32, i64 }, ptr %5, i32 0, i32 0
  %21 = extractvalue { i32, i64 } %18, 0
  store i32 %21, ptr %20, align 8
  %22 = getelementptr inbounds { i32, i64 }, ptr %5, i32 0, i32 1
  %23 = extractvalue { i32, i64 } %18, 1
  store i64 %23, ptr %22, align 8
  invoke void @_ZNSt4pairIllEC2IilTnNSt9enable_ifIXaaclsr6_PCCFPIT_T0_EE22_MoveConstructiblePairIS3_S4_EEclsr6_PCCFPIS3_S4_EE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS_IS3_S4_E(ptr noundef nonnull align 8 dereferenceable(16) %4, ptr noundef nonnull align 8 dereferenceable(16) %5)
          to label %24 unwind label %31

24:                                               ; preds = %19
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 8 dereferenceable(16) %4)
          to label %25 unwind label %31

25:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %4) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #5
  store i64 1, ptr %9, align 8, !tbaa !9
  br label %26

26:                                               ; preds = %45, %25
  %27 = load i64, ptr %9, align 8, !tbaa !9
  %28 = load i64, ptr %2, align 8, !tbaa !9
  %29 = icmp slt i64 %27, %28
  br i1 %29, label %35, label %30

30:                                               ; preds = %26
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %52

31:                                               ; preds = %24, %19, %0
  %32 = landingpad { ptr, i32 }
          cleanup
  %33 = extractvalue { ptr, i32 } %32, 0
  store ptr %33, ptr %7, align 8
  %34 = extractvalue { ptr, i32 } %32, 1
  store i32 %34, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %5) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %4) #5
  br label %116

35:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 16, ptr %10) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #5
  %36 = load i64, ptr %9, align 8, !tbaa !9
  %37 = add nsw i64 %36, 1
  store i64 %37, ptr %11, align 8, !tbaa !9
  %38 = invoke { i64, i64 } @_ZSt9make_pairIRllESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %11)
          to label %39 unwind label %48

39:                                               ; preds = %35
  %40 = getelementptr inbounds { i64, i64 }, ptr %10, i32 0, i32 0
  %41 = extractvalue { i64, i64 } %38, 0
  store i64 %41, ptr %40, align 8
  %42 = getelementptr inbounds { i64, i64 }, ptr %10, i32 0, i32 1
  %43 = extractvalue { i64, i64 } %38, 1
  store i64 %43, ptr %42, align 8
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 8 dereferenceable(16) %10)
          to label %44 unwind label %48

44:                                               ; preds = %39
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #5
  br label %45

45:                                               ; preds = %44
  %46 = load i64, ptr %9, align 8, !tbaa !9
  %47 = add nsw i64 %46, 1
  store i64 %47, ptr %9, align 8, !tbaa !9
  br label %26, !llvm.loop !11

48:                                               ; preds = %39, %35
  %49 = landingpad { ptr, i32 }
          cleanup
  %50 = extractvalue { ptr, i32 } %49, 0
  store ptr %50, ptr %7, align 8
  %51 = extractvalue { ptr, i32 } %49, 1
  store i32 %51, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #5
  br label %116

52:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #5
  store i64 1, ptr %12, align 8, !tbaa !9
  br label %53

53:                                               ; preds = %75, %52
  %54 = load i64, ptr %12, align 8, !tbaa !9
  %55 = mul nsw i64 2, %54
  %56 = load i64, ptr %2, align 8, !tbaa !9
  %57 = icmp sle i64 %55, %56
  br i1 %57, label %59, label %58

58:                                               ; preds = %53
  store i32 5, ptr %13, align 4
  br label %82

59:                                               ; preds = %53
  %60 = call noundef i64 @_ZNKSt6vectorISt4pairIllESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %61 = call noundef zeroext i1 @_Z7isPrimel(i64 noundef %60)
  br i1 %61, label %62, label %63

62:                                               ; preds = %59
  store i32 5, ptr %13, align 4
  br label %82

63:                                               ; preds = %59
  call void @llvm.lifetime.start.p0(i64 16, ptr %14) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #5
  %64 = load i64, ptr %12, align 8, !tbaa !9
  %65 = load i64, ptr %2, align 8, !tbaa !9
  %66 = sdiv i64 %65, 2
  %67 = add nsw i64 %64, %66
  store i64 %67, ptr %15, align 8, !tbaa !9
  %68 = invoke { i64, i64 } @_ZSt9make_pairIRllESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8) %12, ptr noundef nonnull align 8 dereferenceable(8) %15)
          to label %69 unwind label %78

69:                                               ; preds = %63
  %70 = getelementptr inbounds { i64, i64 }, ptr %14, i32 0, i32 0
  %71 = extractvalue { i64, i64 } %68, 0
  store i64 %71, ptr %70, align 8
  %72 = getelementptr inbounds { i64, i64 }, ptr %14, i32 0, i32 1
  %73 = extractvalue { i64, i64 } %68, 1
  store i64 %73, ptr %72, align 8
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %3, ptr noundef nonnull align 8 dereferenceable(16) %14)
          to label %74 unwind label %78

74:                                               ; preds = %69
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %14) #5
  br label %75

75:                                               ; preds = %74
  %76 = load i64, ptr %12, align 8, !tbaa !9
  %77 = add nsw i64 %76, 1
  store i64 %77, ptr %12, align 8, !tbaa !9
  br label %53, !llvm.loop !13

78:                                               ; preds = %69, %63
  %79 = landingpad { ptr, i32 }
          cleanup
  %80 = extractvalue { ptr, i32 } %79, 0
  store ptr %80, ptr %7, align 8
  %81 = extractvalue { ptr, i32 } %79, 1
  store i32 %81, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr %14) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  br label %116

82:                                               ; preds = %62, %58
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #5
  br label %83

83:                                               ; preds = %82
  %84 = call noundef i64 @_ZNKSt6vectorISt4pairIllESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %85 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %84)
          to label %86 unwind label %92

86:                                               ; preds = %83
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #5
  store i64 0, ptr %16, align 8, !tbaa !9
  br label %87

87:                                               ; preds = %107, %86
  %88 = load i64, ptr %16, align 8, !tbaa !9
  %89 = call noundef i64 @_ZNKSt6vectorISt4pairIllESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  %90 = icmp ult i64 %88, %89
  br i1 %90, label %96, label %91

91:                                               ; preds = %87
  store i32 8, ptr %13, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  br label %114

92:                                               ; preds = %83
  %93 = landingpad { ptr, i32 }
          cleanup
  %94 = extractvalue { ptr, i32 } %93, 0
  store ptr %94, ptr %7, align 8
  %95 = extractvalue { ptr, i32 } %93, 1
  store i32 %95, ptr %8, align 4
  br label %116

96:                                               ; preds = %87
  %97 = load i64, ptr %16, align 8, !tbaa !9
  %98 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %97) #5
  %99 = getelementptr inbounds %"struct.std::pair", ptr %98, i32 0, i32 0
  %100 = load i64, ptr %99, align 8, !tbaa !14
  %101 = load i64, ptr %16, align 8, !tbaa !9
  %102 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %3, i64 noundef %101) #5
  %103 = getelementptr inbounds %"struct.std::pair", ptr %102, i32 0, i32 1
  %104 = load i64, ptr %103, align 8, !tbaa !16
  %105 = invoke i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %100, i64 noundef %104)
          to label %106 unwind label %110

106:                                              ; preds = %96
  br label %107

107:                                              ; preds = %106
  %108 = load i64, ptr %16, align 8, !tbaa !9
  %109 = add nsw i64 %108, 1
  store i64 %109, ptr %16, align 8, !tbaa !9
  br label %87, !llvm.loop !17

110:                                              ; preds = %96
  %111 = landingpad { ptr, i32 }
          cleanup
  %112 = extractvalue { ptr, i32 } %111, 0
  store ptr %112, ptr %7, align 8
  %113 = extractvalue { ptr, i32 } %111, 1
  store i32 %113, ptr %8, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #5
  br label %116

114:                                              ; preds = %91
  store i32 0, ptr %1, align 4
  store i32 1, ptr %13, align 4
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  %115 = load i32, ptr %1, align 4
  ret i32 %115

116:                                              ; preds = %110, %92, %78, %48, %31
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %3) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr %3) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #5
  br label %117

117:                                              ; preds = %116
  %118 = load ptr, ptr %7, align 8
  %119 = load i32, ptr %8, align 4
  %120 = insertvalue { ptr, i32 } poison, ptr %118, 0
  %121 = insertvalue { ptr, i32 } %120, i32 %119, 1
  resume { ptr, i32 } %121
}

declare i32 @__isoc99_scanf(ptr noundef, ...) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(16)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { i32, i64 } @_ZSt9make_pairIiRlESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(8)) #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIllEC2IilTnNSt9enable_ifIXaaclsr6_PCCFPIT_T0_EE22_MoveConstructiblePairIS3_S4_EEclsr6_PCCFPIS3_S4_EE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS_IS3_S4_E(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { i64, i64 } @_ZSt9make_pairIRllESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIllESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) #0 align 2

declare i32 @printf(ptr noundef, ...) #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { "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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = !{!15, !10, i64 0}
!15 = !{!"_ZTSSt4pairIllE", !10, i64 0, !10, i64 8}
!16 = !{!15, !10, i64 8}
!17 = distinct !{!17, !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>, std::allocator<std::pair<long, long>>>::_Vector_impl" }
%"struct.std::_Vector_base<std::pair<long, long>, std::allocator<std::pair<long, long>>>::_Vector_impl" = type { %"struct.std::_Vector_base<std::pair<long, long>, std::allocator<std::pair<long, long>>>::_Vector_impl_data" }
%"struct.std::_Vector_base<std::pair<long, long>, std::allocator<std::pair<long, long>>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"struct.std::pair" = type { i64, i64 }
%"struct.std::pair.0" = type { i32, i64 }

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [5 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [9 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_Z7isPrimel(i64 noundef) local_unnamed_addr #0

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

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

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #2 personality ptr @__gxx_personality_v0 {
  %1 = alloca i64, align 8
  %2 = alloca %"class.std::vector", align 8
  %3 = alloca %"struct.std::pair", align 8
  %4 = alloca %"struct.std::pair.0", align 8
  %5 = alloca i32, align 4
  %6 = alloca i64, align 8
  %7 = alloca %"struct.std::pair", align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  %10 = alloca %"struct.std::pair", align 8
  %11 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #5
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %2) #5
  call void @_ZNSt6vectorISt4pairIllESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %4) #5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #5
  store i32 1, ptr %5, align 4, !tbaa !5
  %13 = invoke { i32, i64 } @_ZSt9make_pairIiRlESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 8 dereferenceable(8) %1)
          to label %14 unwind label %24

14:                                               ; preds = %0
  %15 = extractvalue { i32, i64 } %13, 0
  store i32 %15, ptr %4, align 8
  %16 = getelementptr inbounds i8, ptr %4, i64 8
  %17 = extractvalue { i32, i64 } %13, 1
  store i64 %17, ptr %16, align 8
  call void @_ZNSt4pairIllEC2IilTnNSt9enable_ifIXaaclsr6_PCCFPIT_T0_EE22_MoveConstructiblePairIS3_S4_EEclsr6_PCCFPIS3_S4_EE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS_IS3_S4_E(ptr noundef nonnull align 8 dereferenceable(16) %3, ptr noundef nonnull align 8 dereferenceable(16) %4)
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 8 dereferenceable(16) %3)
          to label %18 unwind label %24

18:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #5
  store i64 1, ptr %6, align 8, !tbaa !9
  %19 = load i64, ptr %1, align 8, !tbaa !9
  %20 = icmp sgt i64 %19, 1
  br i1 %20, label %.lr.ph, label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %18
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #5
  br label %._crit_edge14

.lr.ph:                                           ; preds = %18
  %21 = getelementptr inbounds i8, ptr %7, i64 8
  br label %26

._crit_edge:                                      ; preds = %32
  %22 = icmp slt i64 %35, 2
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %9) #5
  store i64 1, ptr %9, align 8, !tbaa !9
  br i1 %22, label %._crit_edge14, label %.lr.ph13

.lr.ph13:                                         ; preds = %._crit_edge
  %23 = getelementptr inbounds i8, ptr %10, i64 8
  br label %39

24:                                               ; preds = %14, %0
  %25 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %4) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %3) #5
  br label %70

26:                                               ; preds = %.lr.ph, %32
  %storemerge10 = phi i64 [ 1, %.lr.ph ], [ %34, %32 ]
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %7) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #5
  %27 = add nsw i64 %storemerge10, 1
  store i64 %27, ptr %8, align 8, !tbaa !9
  %28 = invoke { i64, i64 } @_ZSt9make_pairIRllESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8) %6, ptr noundef nonnull align 8 dereferenceable(8) %8)
          to label %29 unwind label %37

29:                                               ; preds = %26
  %30 = extractvalue { i64, i64 } %28, 0
  store i64 %30, ptr %7, align 8
  %31 = extractvalue { i64, i64 } %28, 1
  store i64 %31, ptr %21, align 8
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 8 dereferenceable(16) %7)
          to label %32 unwind label %37

32:                                               ; preds = %29
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #5
  %33 = load i64, ptr %6, align 8, !tbaa !9
  %34 = add nsw i64 %33, 1
  store i64 %34, ptr %6, align 8, !tbaa !9
  %35 = load i64, ptr %1, align 8, !tbaa !9
  %36 = icmp slt i64 %34, %35
  br i1 %36, label %26, label %._crit_edge, !llvm.loop !11

37:                                               ; preds = %29, %26
  %38 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %7) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #5
  br label %70

39:                                               ; preds = %.lr.ph13, %51
  %40 = call noundef i64 @_ZNKSt6vectorISt4pairIllESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  %41 = call noundef zeroext i1 @_Z7isPrimel(i64 noundef %40)
  br i1 %41, label %._crit_edge14, label %42

42:                                               ; preds = %39
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %10) #5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %11) #5
  %43 = load i64, ptr %9, align 8, !tbaa !9
  %44 = load i64, ptr %1, align 8, !tbaa !9
  %45 = sdiv i64 %44, 2
  %46 = add nsw i64 %45, %43
  store i64 %46, ptr %11, align 8, !tbaa !9
  %47 = invoke { i64, i64 } @_ZSt9make_pairIRllESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %11)
          to label %48 unwind label %56

48:                                               ; preds = %42
  %49 = extractvalue { i64, i64 } %47, 0
  store i64 %49, ptr %10, align 8
  %50 = extractvalue { i64, i64 } %47, 1
  store i64 %50, ptr %23, align 8
  invoke void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24) %2, ptr noundef nonnull align 8 dereferenceable(16) %10)
          to label %51 unwind label %56

51:                                               ; preds = %48
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %10) #5
  %52 = load i64, ptr %9, align 8, !tbaa !9
  %53 = add nsw i64 %52, 1
  store i64 %53, ptr %9, align 8, !tbaa !9
  %54 = shl nsw i64 %53, 1
  %55 = load i64, ptr %1, align 8, !tbaa !9
  %.not = icmp sgt i64 %54, %55
  br i1 %.not, label %._crit_edge14, label %39, !llvm.loop !13

56:                                               ; preds = %48, %42
  %57 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #5
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %10) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #5
  br label %70

._crit_edge14:                                    ; preds = %51, %39, %._crit_edge.thread, %._crit_edge
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %9) #5
  %58 = call noundef i64 @_ZNKSt6vectorISt4pairIllESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  %59 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %58)
  %60 = call noundef i64 @_ZNKSt6vectorISt4pairIllESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  %.not20 = icmp eq i64 %60, 0
  br i1 %.not20, label %._crit_edge19, label %.lr.ph18

._crit_edge19:                                    ; preds = %.lr.ph18, %._crit_edge14
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  ret i32 0

.lr.ph18:                                         ; preds = %._crit_edge14, %.lr.ph18
  %.016 = phi i64 [ %67, %.lr.ph18 ], [ 0, %._crit_edge14 ]
  %61 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.016) #5
  %62 = load i64, ptr %61, align 8, !tbaa !14
  %63 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24) %2, i64 noundef %.016) #5
  %64 = getelementptr inbounds i8, ptr %63, i64 8
  %65 = load i64, ptr %64, align 8, !tbaa !16
  %66 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %62, i64 noundef %65)
  %67 = add nuw nsw i64 %.016, 1
  %68 = call noundef i64 @_ZNKSt6vectorISt4pairIllESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  %69 = icmp ult i64 %67, %68
  br i1 %69, label %.lr.ph18, label %._crit_edge19, !llvm.loop !17

70:                                               ; preds = %56, %37, %24
  %.pn = phi { ptr, i32 } [ %38, %37 ], [ %57, %56 ], [ %25, %24 ]
  call void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %2) #5
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %2) #5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #5
  resume { ptr, i32 } %.pn
}

; Function Attrs: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_EEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_EE9push_backEOS1_(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { i32, i64 } @_ZSt9make_pairIiRlESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

declare i32 @__gxx_personality_v0(...)

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIllEC2IilTnNSt9enable_ifIXaaclsr6_PCCFPIT_T0_EE22_MoveConstructiblePairIS3_S4_EEclsr6_PCCFPIS3_S4_EE30_ImplicitlyMoveConvertiblePairIS3_S4_EEEbE4typeELb1EEEOS_IS3_S4_E(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(16)) unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { i64, i64 } @_ZSt9make_pairIRllESt4pairINSt25__strip_reference_wrapperINSt5decayIT_E4typeEE6__typeENS2_INS3_IT0_E4typeEE6__typeEEOS4_OS9_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt6vectorISt4pairIllESaIS1_EE4sizeEv(ptr noundef nonnull align 8 dereferenceable(24)) local_unnamed_addr #0 align 2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #3

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(16) ptr @_ZNSt6vectorISt4pairIllESaIS1_EEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorISt4pairIllESaIS1_EED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #0 align 2

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { 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 #3 = { 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 #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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = !{!15, !10, i64 0}
!15 = !{!"_ZTSSt4pairIllE", !10, i64 0, !10, i64 8}
!16 = !{!15, !10, i64 8}
!17 = distinct !{!17, !12}


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