; LLVM IR from seikhchilli/codeforces-solution :: 1791D (main)

; 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::unordered_set" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }
%"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] }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }
%"struct.std::pair" = type <{ %"struct.std::__detail::_Node_iterator", i8, [7 x i8] }>
%"struct.std::__detail::_Node_iterator" = type { %"struct.std::__detail::_Node_iterator_base" }
%"struct.std::__detail::_Node_iterator_base" = type { ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 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 i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca %"class.std::unordered_set", align 8
  %5 = alloca %"class.std::unordered_set", align 8
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca %"class.std::vector", align 8
  %8 = alloca i32, align 4
  %9 = alloca %"class.std::allocator.2", align 1
  %10 = alloca ptr, align 8
  %11 = alloca i32, align 4
  %12 = alloca %"class.std::__cxx11::basic_string", align 8
  %13 = alloca ptr, align 8
  %14 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %15 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %16 = alloca i8, align 1
  %17 = alloca %"struct.std::pair", align 8
  %18 = alloca i32, align 4
  %19 = alloca i32, align 4
  %20 = alloca %"struct.std::pair", align 8
  %21 = alloca i32, align 4
  %22 = alloca i32, align 4
  %23 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %24 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %25 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %26 = getelementptr i8, ptr %25, i64 -24
  %27 = load i64, ptr %26, align 8
  %28 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %27
  %29 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %28, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #7
  %30 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  br label %31

31:                                               ; preds = %145, %0
  %32 = load i32, ptr %2, align 4, !tbaa !8
  %33 = add nsw i32 %32, -1
  store i32 %33, ptr %2, align 4, !tbaa !8
  %34 = icmp ne i32 %32, 0
  br i1 %34, label %35, label %153

35:                                               ; preds = %31
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #7
  %36 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %3)
  call void @llvm.lifetime.start.p0(i64 56, ptr %4) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %4) #7
  call void @llvm.lifetime.start.p0(i64 56, ptr %5) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %5) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr %6) #7
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #7
  %37 = load i32, ptr %3, align 4, !tbaa !8
  %38 = sext i32 %37 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr %8) #7
  store i32 0, ptr %8, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #7
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #7
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %38, ptr noundef nonnull align 4 dereferenceable(4) %8, ptr noundef nonnull align 1 dereferenceable(1) %9)
          to label %39 unwind label %51

39:                                               ; preds = %35
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr %12) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  %40 = 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) %12)
          to label %41 unwind label %55

41:                                               ; preds = %39
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #7
  store ptr %12, ptr %13, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #7
  %42 = load ptr, ptr %13, align 8, !tbaa !11
  %43 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %42) #7
  %44 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %14, i32 0, i32 0
  store ptr %43, ptr %44, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #7
  %45 = load ptr, ptr %13, align 8, !tbaa !11
  %46 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %45) #7
  %47 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %15, i32 0, i32 0
  store ptr %46, ptr %47, align 8
  br label %48

48:                                               ; preds = %71, %41
  %49 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %14, ptr noundef nonnull align 8 dereferenceable(8) %15) #7
  br i1 %49, label %59, label %50

50:                                               ; preds = %48
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  br label %82

51:                                               ; preds = %35
  %52 = landingpad { ptr, i32 }
          cleanup
  %53 = extractvalue { ptr, i32 } %52, 0
  store ptr %53, ptr %10, align 8
  %54 = extractvalue { ptr, i32 } %52, 1
  store i32 %54, ptr %11, align 4
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %9) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %8) #7
  br label %152

55:                                               ; preds = %39
  %56 = landingpad { ptr, i32 }
          cleanup
  %57 = extractvalue { ptr, i32 } %56, 0
  store ptr %57, ptr %10, align 8
  %58 = extractvalue { ptr, i32 } %56, 1
  store i32 %58, ptr %11, align 4
  br label %151

59:                                               ; preds = %48
  call void @llvm.lifetime.start.p0(i64 1, ptr %16) #7
  %60 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %14) #7
  %61 = load i8, ptr %60, align 1, !tbaa !13
  store i8 %61, ptr %16, align 1, !tbaa !13
  %62 = invoke { ptr, i8 } @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(56) %4, ptr noundef nonnull align 1 dereferenceable(1) %16)
          to label %63 unwind label %73

63:                                               ; preds = %59
  %64 = getelementptr inbounds { ptr, i8 }, ptr %17, i32 0, i32 0
  %65 = extractvalue { ptr, i8 } %62, 0
  store ptr %65, ptr %64, align 8
  %66 = getelementptr inbounds { ptr, i8 }, ptr %17, i32 0, i32 1
  %67 = extractvalue { ptr, i8 } %62, 1
  store i8 %67, ptr %66, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %18) #7
  %68 = call noundef i64 @_ZNKSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56) %4) #7
  %69 = trunc i64 %68 to i32
  store i32 %69, ptr %18, align 4, !tbaa !8
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %6, ptr noundef nonnull align 4 dereferenceable(4) %18)
          to label %70 unwind label %77

70:                                               ; preds = %63
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #7
  br label %71

71:                                               ; preds = %70
  %72 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %14) #7
  br label %48

73:                                               ; preds = %59
  %74 = landingpad { ptr, i32 }
          cleanup
  %75 = extractvalue { ptr, i32 } %74, 0
  store ptr %75, ptr %10, align 8
  %76 = extractvalue { ptr, i32 } %74, 1
  store i32 %76, ptr %11, align 4
  br label %81

77:                                               ; preds = %63
  %78 = landingpad { ptr, i32 }
          cleanup
  %79 = extractvalue { ptr, i32 } %78, 0
  store ptr %79, ptr %10, align 8
  %80 = extractvalue { ptr, i32 } %78, 1
  store i32 %80, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %18) #7
  br label %81

81:                                               ; preds = %77, %73
  call void @llvm.lifetime.end.p0(i64 1, ptr %16) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #7
  br label %151

82:                                               ; preds = %50
  call void @llvm.lifetime.start.p0(i64 4, ptr %19) #7
  %83 = load i32, ptr %3, align 4, !tbaa !8
  %84 = sub nsw i32 %83, 1
  store i32 %84, ptr %19, align 4, !tbaa !8
  br label %85

85:                                               ; preds = %105, %82
  %86 = load i32, ptr %19, align 4, !tbaa !8
  %87 = icmp sge i32 %86, 0
  br i1 %87, label %89, label %88

88:                                               ; preds = %85
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #7
  br label %112

89:                                               ; preds = %85
  %90 = load i32, ptr %19, align 4, !tbaa !8
  %91 = sext i32 %90 to i64
  %92 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %12, i64 noundef %91)
          to label %93 unwind label %108

93:                                               ; preds = %89
  %94 = invoke { ptr, i8 } @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(56) %5, ptr noundef nonnull align 1 dereferenceable(1) %92)
          to label %95 unwind label %108

95:                                               ; preds = %93
  %96 = getelementptr inbounds { ptr, i8 }, ptr %20, i32 0, i32 0
  %97 = extractvalue { ptr, i8 } %94, 0
  store ptr %97, ptr %96, align 8
  %98 = getelementptr inbounds { ptr, i8 }, ptr %20, i32 0, i32 1
  %99 = extractvalue { ptr, i8 } %94, 1
  store i8 %99, ptr %98, align 8
  %100 = call noundef i64 @_ZNKSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56) %5) #7
  %101 = trunc i64 %100 to i32
  %102 = load i32, ptr %19, align 4, !tbaa !8
  %103 = sext i32 %102 to i64
  %104 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %103) #7
  store i32 %101, ptr %104, align 4, !tbaa !8
  br label %105

105:                                              ; preds = %95
  %106 = load i32, ptr %19, align 4, !tbaa !8
  %107 = add nsw i32 %106, -1
  store i32 %107, ptr %19, align 4, !tbaa !8
  br label %85, !llvm.loop !14

108:                                              ; preds = %93, %89
  %109 = landingpad { ptr, i32 }
          cleanup
  %110 = extractvalue { ptr, i32 } %109, 0
  store ptr %110, ptr %10, align 8
  %111 = extractvalue { ptr, i32 } %109, 1
  store i32 %111, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %19) #7
  br label %151

112:                                              ; preds = %88
  call void @llvm.lifetime.start.p0(i64 4, ptr %21) #7
  store i32 0, ptr %21, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr %22) #7
  store i32 0, ptr %22, align 4, !tbaa !8
  br label %113

113:                                              ; preds = %133, %112
  %114 = load i32, ptr %22, align 4, !tbaa !8
  %115 = load i32, ptr %3, align 4, !tbaa !8
  %116 = sub nsw i32 %115, 1
  %117 = icmp slt i32 %114, %116
  br i1 %117, label %119, label %118

118:                                              ; preds = %113
  call void @llvm.lifetime.end.p0(i64 4, ptr %22) #7
  br label %140

119:                                              ; preds = %113
  call void @llvm.lifetime.start.p0(i64 4, ptr %23) #7
  %120 = load i32, ptr %22, align 4, !tbaa !8
  %121 = sext i32 %120 to i64
  %122 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %121) #7
  %123 = load i32, ptr %122, align 4, !tbaa !8
  %124 = load i32, ptr %22, align 4, !tbaa !8
  %125 = add nsw i32 %124, 1
  %126 = sext i32 %125 to i64
  %127 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %7, i64 noundef %126) #7
  %128 = load i32, ptr %127, align 4, !tbaa !8
  %129 = add nsw i32 %123, %128
  store i32 %129, ptr %23, align 4, !tbaa !8
  %130 = invoke noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %23, ptr noundef nonnull align 4 dereferenceable(4) %21)
          to label %131 unwind label %136

131:                                              ; preds = %119
  %132 = load i32, ptr %130, align 4, !tbaa !8
  store i32 %132, ptr %21, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr %23) #7
  br label %133

133:                                              ; preds = %131
  %134 = load i32, ptr %22, align 4, !tbaa !8
  %135 = add nsw i32 %134, 1
  store i32 %135, ptr %22, align 4, !tbaa !8
  br label %113, !llvm.loop !16

136:                                              ; preds = %119
  %137 = landingpad { ptr, i32 }
          cleanup
  %138 = extractvalue { ptr, i32 } %137, 0
  store ptr %138, ptr %10, align 8
  %139 = extractvalue { ptr, i32 } %137, 1
  store i32 %139, ptr %11, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %23) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %22) #7
  br label %150

140:                                              ; preds = %118
  %141 = load i32, ptr %21, align 4, !tbaa !8
  %142 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %141)
          to label %143 unwind label %146

143:                                              ; preds = %140
  %144 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %142, ptr noundef @.str)
          to label %145 unwind label %146

145:                                              ; preds = %143
  call void @llvm.lifetime.end.p0(i64 4, ptr %21) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %5) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr %5) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %4) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  br label %31, !llvm.loop !17

146:                                              ; preds = %143, %140
  %147 = landingpad { ptr, i32 }
          cleanup
  %148 = extractvalue { ptr, i32 } %147, 0
  store ptr %148, ptr %10, align 8
  %149 = extractvalue { ptr, i32 } %147, 1
  store i32 %149, ptr %11, align 4
  br label %150

150:                                              ; preds = %146, %136
  call void @llvm.lifetime.end.p0(i64 4, ptr %21) #7
  br label %151

151:                                              ; preds = %150, %108, %81, %55
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %12) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %12) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %7) #7
  br label %152

152:                                              ; preds = %151, %51
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr %6) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %5) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr %5) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %4) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr %4) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  br label %155

153:                                              ; preds = %31
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #7
  %154 = load i32, ptr %1, align 4
  ret i32 %154

155:                                              ; preds = %152
  %156 = load ptr, ptr %10, align 8
  %157 = load i32, ptr %11, align 4
  %158 = insertvalue { ptr, i32 } poison, ptr %156, 0
  %159 = insertvalue { ptr, i32 } %158, i32 %157, 1
  resume { ptr, i32 } %159
}

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

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

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), 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) #3

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) #1

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 1 dereferenceable(1)) #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56)) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) #2 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) #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) #6

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { 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 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 #6 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !10, i64 0}
!13 = !{!10, !10, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = distinct !{!16, !15}
!17 = distinct !{!17, !15}


; 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::unordered_set" = type { %"class.std::_Hashtable" }
%"class.std::_Hashtable" = type { ptr, i64, %"struct.std::__detail::_Hash_node_base", i64, %"struct.std::__detail::_Prime_rehash_policy", ptr }
%"struct.std::__detail::_Hash_node_base" = type { ptr }
%"struct.std::__detail::_Prime_rehash_policy" = type { float, i64 }
%"class.std::vector" = type { %"struct.std::_Vector_base" }
%"struct.std::_Vector_base" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl" = type { %"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" }
%"struct.std::_Vector_base<int, std::allocator<int>>::_Vector_impl_data" = type { ptr, ptr, ptr }
%"class.std::allocator.2" = type { i8 }
%"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] }
%"class.__gnu_cxx::__normal_iterator" = type { ptr }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [2 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 i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca %"class.std::unordered_set", align 8
  %4 = alloca %"class.std::unordered_set", align 8
  %5 = alloca %"class.std::vector", align 8
  %6 = alloca %"class.std::vector", align 8
  %7 = alloca i32, align 4
  %8 = alloca %"class.std::allocator.2", align 1
  %9 = alloca %"class.std::__cxx11::basic_string", align 8
  %10 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %11 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %12 = alloca i8, align 1
  %13 = alloca i32, align 4
  %14 = alloca i32, align 4
  %15 = alloca i32, align 4
  %16 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %17 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %18 = getelementptr i8, ptr %17, i64 -24
  %19 = load i64, ptr %18, align 8
  %20 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %19
  %21 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %20, ptr noundef null)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #7
  %22 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %1)
  %23 = load i32, ptr %1, align 4, !tbaa !8
  %24 = add nsw i32 %23, -1
  store i32 %24, ptr %1, align 4, !tbaa !8
  %.not31 = icmp eq i32 %23, 0
  br i1 %.not31, label %._crit_edge34, label %.lr.ph33

.lr.ph33:                                         ; preds = %0, %80
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #7
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERi(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 4 dereferenceable(4) %2)
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %3) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %3) #7
  call void @llvm.lifetime.start.p0(i64 56, ptr nonnull %4) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56) %4) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %5) #7
  call void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %6) #7
  %26 = load i32, ptr %2, align 4, !tbaa !8
  %27 = sext i32 %26 to i64
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %7) #7
  store i32 0, ptr %7, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %8) #7
  call void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #7
  invoke void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %27, ptr noundef nonnull align 4 dereferenceable(4) %7, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %28 unwind label %37

28:                                               ; preds = %.lr.ph33
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #7
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %9) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #7
  %29 = 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) %9)
          to label %30 unwind label %39

30:                                               ; preds = %28
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %10) #7
  %31 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %9) #7
  store ptr %31, ptr %10, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %11) #7
  %32 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %9) #7
  store ptr %32, ptr %11, align 8
  %33 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  br i1 %33, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %47, %30
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #7
  %34 = load i32, ptr %2, align 4, !tbaa !8
  %35 = icmp sgt i32 %34, 0
  br i1 %35, label %.lr.ph25.preheader, label %._crit_edge26.thread

._crit_edge26.thread:                             ; preds = %._crit_edge
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %14) #7
  store i32 0, ptr %14, align 4, !tbaa !8
  br label %._crit_edge30

.lr.ph25.preheader:                               ; preds = %._crit_edge
  %36 = zext nneg i32 %34 to i64
  br label %.lr.ph25

37:                                               ; preds = %.lr.ph33
  %38 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1) %8) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %8) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %7) #7
  br label %86

39:                                               ; preds = %28
  %40 = landingpad { ptr, i32 }
          cleanup
  br label %85

.lr.ph:                                           ; preds = %30, %47
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %12) #7
  %41 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  %42 = load i8, ptr %41, align 1, !tbaa !11
  store i8 %42, ptr %12, align 1, !tbaa !11
  %43 = invoke { ptr, i8 } @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(56) %3, ptr noundef nonnull align 1 dereferenceable(1) %12)
          to label %44 unwind label %50

44:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %13) #7
  %45 = call noundef i64 @_ZNKSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56) %3) #7
  %46 = trunc i64 %45 to i32
  store i32 %46, ptr %13, align 4, !tbaa !8
  invoke void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24) %5, ptr noundef nonnull align 4 dereferenceable(4) %13)
          to label %47 unwind label %52

47:                                               ; preds = %44
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %13) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #7
  %48 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8) %10) #7
  %49 = call noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11) #7
  br i1 %49, label %.lr.ph, label %._crit_edge

50:                                               ; preds = %.lr.ph
  %51 = landingpad { ptr, i32 }
          cleanup
  br label %54

52:                                               ; preds = %44
  %53 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %13) #7
  br label %54

54:                                               ; preds = %52, %50
  %.pn = phi { ptr, i32 } [ %53, %52 ], [ %51, %50 ]
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %12) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %10) #7
  br label %85

._crit_edge26:                                    ; preds = %58
  %.pre = load i32, ptr %2, align 4, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %14) #7
  store i32 0, ptr %14, align 4, !tbaa !8
  %55 = icmp sgt i32 %.pre, 1
  br i1 %55, label %.lr.ph29, label %._crit_edge30

.lr.ph25:                                         ; preds = %.lr.ph25.preheader, %58
  %indvars.iv = phi i64 [ %36, %.lr.ph25.preheader ], [ %indvars.iv.next, %58 ]
  %indvars.iv.next = add nsw i64 %indvars.iv, -1
  %56 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %9, i64 noundef %indvars.iv.next)
  %57 = invoke { ptr, i8 } @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(56) %4, ptr noundef nonnull align 1 dereferenceable(1) %56)
          to label %58 unwind label %63

58:                                               ; preds = %.lr.ph25
  %59 = call noundef i64 @_ZNKSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56) %4) #7
  %60 = trunc i64 %59 to i32
  %61 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %indvars.iv.next) #7
  store i32 %60, ptr %61, align 4, !tbaa !8
  %62 = icmp ugt i64 %indvars.iv, 1
  br i1 %62, label %.lr.ph25, label %._crit_edge26, !llvm.loop !12

63:                                               ; preds = %.lr.ph25
  %64 = landingpad { ptr, i32 }
          cleanup
  br label %85

._crit_edge30:                                    ; preds = %.lr.ph29, %._crit_edge26.thread, %._crit_edge26
  %65 = phi i32 [ 0, %._crit_edge26 ], [ 0, %._crit_edge26.thread ], [ %73, %.lr.ph29 ]
  %66 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %65)
          to label %78 unwind label %83

.lr.ph29:                                         ; preds = %._crit_edge26, %.lr.ph29
  %indvars.iv36 = phi i64 [ %indvars.iv.next37, %.lr.ph29 ], [ 0, %._crit_edge26 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %15) #7
  %67 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %5, i64 noundef %indvars.iv36) #7
  %68 = load i32, ptr %67, align 4, !tbaa !8
  %indvars.iv.next37 = add nuw nsw i64 %indvars.iv36, 1
  %69 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24) %6, i64 noundef %indvars.iv.next37) #7
  %70 = load i32, ptr %69, align 4, !tbaa !8
  %71 = add nsw i32 %70, %68
  store i32 %71, ptr %15, align 4, !tbaa !8
  %72 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4) %15, ptr noundef nonnull align 4 dereferenceable(4) %14)
  %73 = load i32, ptr %72, align 4, !tbaa !8
  store i32 %73, ptr %14, align 4, !tbaa !8
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %15) #7
  %74 = load i32, ptr %2, align 4, !tbaa !8
  %75 = add nsw i32 %74, -1
  %76 = sext i32 %75 to i64
  %77 = icmp slt i64 %indvars.iv.next37, %76
  br i1 %77, label %.lr.ph29, label %._crit_edge30, !llvm.loop !14

78:                                               ; preds = %._crit_edge30
  %79 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %66, ptr noundef nonnull @.str)
          to label %80 unwind label %83

80:                                               ; preds = %78
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %14) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %6) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %4) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %4) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %3) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  %81 = load i32, ptr %1, align 4, !tbaa !8
  %82 = add nsw i32 %81, -1
  store i32 %82, ptr %1, align 4, !tbaa !8
  %.not = icmp eq i32 %81, 0
  br i1 %.not, label %._crit_edge34, label %.lr.ph33, !llvm.loop !15

83:                                               ; preds = %78, %._crit_edge30
  %84 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %14) #7
  br label %85

85:                                               ; preds = %83, %63, %54, %39
  %.pn.pn = phi { ptr, i32 } [ %.pn, %54 ], [ %64, %63 ], [ %84, %83 ], [ %40, %39 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %9) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %9) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %6) #7
  br label %86

86:                                               ; preds = %85, %37
  %.pn.pn.pn = phi { ptr, i32 } [ %.pn.pn, %85 ], [ %38, %37 ]
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %6) #7
  call void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24) %5) #7
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %5) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %4) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %4) #7
  call void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56) %3) #7
  call void @llvm.lifetime.end.p0(i64 56, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #7
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn.pn.pn

._crit_edge34:                                    ; preds = %80, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #7
  ret i32 0
}

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

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

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSaIiEC2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEEC2EmRKiRKS0_(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef, ptr noundef nonnull align 4 dereferenceable(4), 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) #3

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

declare noundef nonnull align 8 dereferenceable(16) ptr @_ZStrsIcSt11char_traitsIcESaIcEERSt13basic_istreamIT_T0_ES7_RNSt7__cxx1112basic_stringIS4_S5_T1_EE(ptr noundef nonnull align 8 dereferenceable(16), ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef zeroext i1 @_ZN9__gnu_cxxneIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEbRKNS_17__normal_iteratorIT_T0_EESD_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 1 dereferenceable(1) ptr @_ZNK9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEdeEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE6insertERKc(ptr noundef nonnull align 8 dereferenceable(56), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEE9push_backEOi(ptr noundef nonnull align 8 dereferenceable(24), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #4 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(56)) local_unnamed_addr #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEppEv(ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #2 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 #2 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZNSt6vectorIiSaIiEEixEm(ptr noundef nonnull align 8 dereferenceable(24), i64 noundef) local_unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZSt3maxIiERKT_S2_S2_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef) local_unnamed_addr #6

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

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

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt6vectorIiSaIiEED2Ev(ptr noundef nonnull align 8 dereferenceable(24)) unnamed_addr #2 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt13unordered_setIcSt4hashIcESt8equal_toIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(56)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt15__new_allocatorIiED2Ev(ptr noundef nonnull align 1 dereferenceable(1)) unnamed_addr #2 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 nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #4 = { mustprogress 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 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 #6 = { inlinehint mustprogress uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #7 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"int", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = !{!10, !10, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"llvm.loop.mustprogress"}
!14 = distinct !{!14, !13}
!15 = distinct !{!15, !13}


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