; LLVM IR from eyangch/competitive-programming :: Codeforces/1611 (a)

; 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::__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.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::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }
%"struct.std::pair" = type <{ %"struct.std::_Rb_tree_const_iterator", i8, [7 x i8] }>
%"struct.std::_Rb_tree_const_iterator" = type { ptr }

@T = external dso_local global i64, align 8
@_Z1NB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca %"class.std::set", align 8
  %3 = alloca i64, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i32, align 4
  %6 = alloca %"struct.std::pair", align 8
  %7 = alloca i64, align 8
  %8 = alloca %"struct.std::pair", align 8
  %9 = alloca i64, align 8
  %10 = alloca %"struct.std::pair", 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 i8, align 1
  %16 = alloca i64, align 8
  %17 = alloca i32, align 4
  %18 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  %19 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %20 = getelementptr i8, ptr %19, i64 -24
  %21 = load i64, ptr %20, align 8
  %22 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %21
  %23 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %22, ptr noundef null)
  %24 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %25 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @T)
  br label %26

26:                                               ; preds = %150, %0
  %27 = load i64, ptr @T, align 8, !tbaa !8
  %28 = add nsw i64 %27, -1
  store i64 %28, ptr @T, align 8, !tbaa !8
  %29 = icmp ne i64 %27, 0
  br i1 %29, label %30, label %152

30:                                               ; preds = %26
  %31 = call 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) @_Z1NB5cxx11)
  call void @llvm.lifetime.start.p0(i64 48, ptr %2) #6
  call void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #6
  store i64 50, ptr %3, align 8, !tbaa !8
  %32 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %3)
          to label %33 unwind label %68

33:                                               ; preds = %30
  %34 = getelementptr inbounds { ptr, i8 }, ptr %6, i32 0, i32 0
  %35 = extractvalue { ptr, i8 } %32, 0
  store ptr %35, ptr %34, align 8
  %36 = getelementptr inbounds { ptr, i8 }, ptr %6, i32 0, i32 1
  %37 = extractvalue { ptr, i8 } %32, 1
  store i8 %37, ptr %36, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #6
  store i64 52, ptr %7, align 8, !tbaa !8
  %38 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %39 unwind label %72

39:                                               ; preds = %33
  %40 = getelementptr inbounds { ptr, i8 }, ptr %8, i32 0, i32 0
  %41 = extractvalue { ptr, i8 } %38, 0
  store ptr %41, ptr %40, align 8
  %42 = getelementptr inbounds { ptr, i8 }, ptr %8, i32 0, i32 1
  %43 = extractvalue { ptr, i8 } %38, 1
  store i8 %43, ptr %42, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  store i64 54, ptr %9, align 8, !tbaa !8
  %44 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %9)
          to label %45 unwind label %76

45:                                               ; preds = %39
  %46 = getelementptr inbounds { ptr, i8 }, ptr %10, i32 0, i32 0
  %47 = extractvalue { ptr, i8 } %44, 0
  store ptr %47, ptr %46, align 8
  %48 = getelementptr inbounds { ptr, i8 }, ptr %10, i32 0, i32 1
  %49 = extractvalue { ptr, i8 } %44, 1
  store i8 %49, ptr %48, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  store i64 56, ptr %11, align 8, !tbaa !8
  %50 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %11)
          to label %51 unwind label %80

51:                                               ; preds = %45
  %52 = getelementptr inbounds { ptr, i8 }, ptr %12, i32 0, i32 0
  %53 = extractvalue { ptr, i8 } %50, 0
  store ptr %53, ptr %52, align 8
  %54 = getelementptr inbounds { ptr, i8 }, ptr %12, i32 0, i32 1
  %55 = extractvalue { ptr, i8 } %50, 1
  store i8 %55, ptr %54, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  %56 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11) #6
  %57 = sub i64 %56, 1
  %58 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11, i64 noundef %57)
          to label %59 unwind label %84

59:                                               ; preds = %51
  %60 = load i8, ptr %58, align 1, !tbaa !11
  %61 = sext i8 %60 to i64
  store i64 %61, ptr %13, align 8, !tbaa !8
  %62 = invoke noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %13)
          to label %63 unwind label %84

63:                                               ; preds = %59
  %64 = icmp ne i64 %62, 0
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  br i1 %64, label %65, label %92

65:                                               ; preds = %63
  %66 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef 0)
          to label %67 unwind label %88

67:                                               ; preds = %65
  br label %148

68:                                               ; preds = %30
  %69 = landingpad { ptr, i32 }
          cleanup
  %70 = extractvalue { ptr, i32 } %69, 0
  store ptr %70, ptr %4, align 8
  %71 = extractvalue { ptr, i32 } %69, 1
  store i32 %71, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #6
  br label %151

72:                                               ; preds = %33
  %73 = landingpad { ptr, i32 }
          cleanup
  %74 = extractvalue { ptr, i32 } %73, 0
  store ptr %74, ptr %4, align 8
  %75 = extractvalue { ptr, i32 } %73, 1
  store i32 %75, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #6
  br label %151

76:                                               ; preds = %39
  %77 = landingpad { ptr, i32 }
          cleanup
  %78 = extractvalue { ptr, i32 } %77, 0
  store ptr %78, ptr %4, align 8
  %79 = extractvalue { ptr, i32 } %77, 1
  store i32 %79, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %151

80:                                               ; preds = %45
  %81 = landingpad { ptr, i32 }
          cleanup
  %82 = extractvalue { ptr, i32 } %81, 0
  store ptr %82, ptr %4, align 8
  %83 = extractvalue { ptr, i32 } %81, 1
  store i32 %83, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  br label %151

84:                                               ; preds = %59, %51
  %85 = landingpad { ptr, i32 }
          cleanup
  %86 = extractvalue { ptr, i32 } %85, 0
  store ptr %86, ptr %4, align 8
  %87 = extractvalue { ptr, i32 } %85, 1
  store i32 %87, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  br label %151

88:                                               ; preds = %148, %100, %65
  %89 = landingpad { ptr, i32 }
          cleanup
  %90 = extractvalue { ptr, i32 } %89, 0
  store ptr %90, ptr %4, align 8
  %91 = extractvalue { ptr, i32 } %89, 1
  store i32 %91, ptr %5, align 4
  br label %151

92:                                               ; preds = %63
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  %93 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11, i64 noundef 0)
          to label %94 unwind label %103

94:                                               ; preds = %92
  %95 = load i8, ptr %93, align 1, !tbaa !11
  %96 = sext i8 %95 to i64
  store i64 %96, ptr %14, align 8, !tbaa !8
  %97 = invoke noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %14)
          to label %98 unwind label %103

98:                                               ; preds = %94
  %99 = icmp ne i64 %97, 0
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  br i1 %99, label %100, label %107

100:                                              ; preds = %98
  %101 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef 1)
          to label %102 unwind label %88

102:                                              ; preds = %100
  br label %147

103:                                              ; preds = %94, %92
  %104 = landingpad { ptr, i32 }
          cleanup
  %105 = extractvalue { ptr, i32 } %104, 0
  store ptr %105, ptr %4, align 8
  %106 = extractvalue { ptr, i32 } %104, 1
  store i32 %106, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  br label %151

107:                                              ; preds = %98
  call void @llvm.lifetime.start.p0(i64 1, ptr %15) #6
  store i8 0, ptr %15, align 1, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #6
  store i64 0, ptr %16, align 8, !tbaa !8
  br label %108

108:                                              ; preds = %128, %107
  %109 = load i64, ptr %16, align 8, !tbaa !8
  %110 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11) #6
  %111 = icmp ult i64 %109, %110
  br i1 %111, label %113, label %112

112:                                              ; preds = %108
  store i32 4, ptr %17, align 4
  br label %131

113:                                              ; preds = %108
  call void @llvm.lifetime.start.p0(i64 8, ptr %18) #6
  %114 = load i64, ptr %16, align 8, !tbaa !8
  %115 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11, i64 noundef %114)
          to label %116 unwind label %123

116:                                              ; preds = %113
  %117 = load i8, ptr %115, align 1, !tbaa !11
  %118 = sext i8 %117 to i64
  store i64 %118, ptr %18, align 8, !tbaa !8
  %119 = invoke noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48) %2, ptr noundef nonnull align 8 dereferenceable(8) %18)
          to label %120 unwind label %123

120:                                              ; preds = %116
  %121 = icmp ne i64 %119, 0
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #6
  br i1 %121, label %122, label %127

122:                                              ; preds = %120
  store i8 1, ptr %15, align 1, !tbaa !12
  store i32 4, ptr %17, align 4
  br label %131

123:                                              ; preds = %116, %113
  %124 = landingpad { ptr, i32 }
          cleanup
  %125 = extractvalue { ptr, i32 } %124, 0
  store ptr %125, ptr %4, align 8
  %126 = extractvalue { ptr, i32 } %124, 1
  store i32 %126, ptr %5, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %18) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  br label %146

127:                                              ; preds = %120
  br label %128

128:                                              ; preds = %127
  %129 = load i64, ptr %16, align 8, !tbaa !8
  %130 = add nsw i64 %129, 1
  store i64 %130, ptr %16, align 8, !tbaa !8
  br label %108, !llvm.loop !14

131:                                              ; preds = %122, %112
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #6
  br label %132

132:                                              ; preds = %131
  %133 = load i8, ptr %15, align 1, !tbaa !12, !range !16, !noundef !17
  %134 = trunc i8 %133 to i1
  br i1 %134, label %135, label %142

135:                                              ; preds = %132
  %136 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef 2)
          to label %137 unwind label %138

137:                                              ; preds = %135
  br label %145

138:                                              ; preds = %142, %135
  %139 = landingpad { ptr, i32 }
          cleanup
  %140 = extractvalue { ptr, i32 } %139, 0
  store ptr %140, ptr %4, align 8
  %141 = extractvalue { ptr, i32 } %139, 1
  store i32 %141, ptr %5, align 4
  br label %146

142:                                              ; preds = %132
  %143 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef -1)
          to label %144 unwind label %138

144:                                              ; preds = %142
  br label %145

145:                                              ; preds = %144, %137
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #6
  br label %147

146:                                              ; preds = %138, %123
  call void @llvm.lifetime.end.p0(i64 1, ptr %15) #6
  br label %151

147:                                              ; preds = %145, %102
  br label %148

148:                                              ; preds = %147, %67
  %149 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext 10)
          to label %150 unwind label %88

150:                                              ; preds = %148
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr %2) #6
  br label %26, !llvm.loop !18

151:                                              ; preds = %146, %103, %88, %84, %80, %76, %72, %68
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %2) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr %2) #6
  br label %154

152:                                              ; preds = %26
  %153 = load i32, ptr %1, align 4
  ret i32 %153

154:                                              ; preds = %151
  %155 = load ptr, ptr %4, align 8
  %156 = load i32, ptr %5, align 4
  %157 = insertvalue { ptr, i32 } poison, ptr %155, 0
  %158 = insertvalue { ptr, i32 } %157, i32 %156, 1
  resume { ptr, i32 } %158
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #2

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

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #3 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) #4

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) #3 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) #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) #1 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 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 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 #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 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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = !{!10, !10, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"bool", !10, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}
!16 = !{i8 0, i8 2}
!17 = !{}
!18 = distinct !{!18, !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::__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.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::set" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<long long, long long, std::_Identity<long long>, std::less<long long>>::_Rb_tree_impl" = type { [8 x i8], %"struct.std::_Rb_tree_header" }
%"struct.std::_Rb_tree_header" = type { %"struct.std::_Rb_tree_node_base", i64 }
%"struct.std::_Rb_tree_node_base" = type { i32, ptr, ptr, ptr }

@T = external dso_local global i64, align 8
@_Z1NB5cxx11 = external dso_local global %"class.std::__cxx11::basic_string", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::set", align 8
  %2 = alloca i64, align 8
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca i64, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %10 = getelementptr i8, ptr %9, i64 -24
  %11 = load i64, ptr %10, align 8
  %12 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %11
  %13 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %12, ptr noundef null)
  %14 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %15 = tail call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @T)
  %16 = load i64, ptr @T, align 8, !tbaa !8
  %17 = add nsw i64 %16, -1
  store i64 %17, ptr @T, align 8, !tbaa !8
  %.not23 = icmp eq i64 %16, 0
  br i1 %.not23, label %._crit_edge, label %.lr.ph24

.lr.ph24:                                         ; preds = %0, %74
  %18 = call 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) @_Z1NB5cxx11)
  call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %1) #6
  call void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #6
  store i64 50, ptr %2, align 8, !tbaa !8
  %19 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %20 unwind label %34

20:                                               ; preds = %.lr.ph24
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  store i64 52, ptr %3, align 8, !tbaa !8
  %21 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %3)
          to label %22 unwind label %36

22:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  store i64 54, ptr %4, align 8, !tbaa !8
  %23 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %24 unwind label %38

24:                                               ; preds = %22
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #6
  store i64 56, ptr %5, align 8, !tbaa !8
  %25 = invoke { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %5)
          to label %26 unwind label %40

26:                                               ; preds = %24
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #6
  %27 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11) #6
  %28 = add i64 %27, -1
  %29 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11, i64 noundef %28)
  %30 = load i8, ptr %29, align 1, !tbaa !11
  %31 = sext i8 %30 to i64
  store i64 %31, ptr %6, align 8, !tbaa !8
  %32 = invoke noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %6)
          to label %33 unwind label %42

33:                                               ; preds = %26
  %.not16 = icmp eq i64 %32, 0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  br i1 %.not16, label %46, label %.invoke

34:                                               ; preds = %.lr.ph24
  %35 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #6
  br label %77

36:                                               ; preds = %20
  %37 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br label %77

38:                                               ; preds = %22
  %39 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  br label %77

40:                                               ; preds = %24
  %41 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  br label %77

42:                                               ; preds = %26
  %43 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #6
  br label %77

44:                                               ; preds = %.invoke, %72
  %45 = landingpad { ptr, i32 }
          cleanup
  br label %77

46:                                               ; preds = %33
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #6
  %47 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11, i64 noundef 0)
  %48 = load i8, ptr %47, align 1, !tbaa !11
  %49 = sext i8 %48 to i64
  store i64 %49, ptr %7, align 8, !tbaa !8
  %50 = invoke noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %7)
          to label %51 unwind label %55

51:                                               ; preds = %46
  %.not17 = icmp eq i64 %50, 0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  br i1 %.not17, label %.preheader, label %.invoke

.preheader:                                       ; preds = %51
  %52 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11) #6
  %.not25 = icmp eq i64 %52, 0
  br i1 %.not25, label %.critedge.invoke, label %.lr.ph

.invoke:                                          ; preds = %33, %51
  %53 = phi i32 [ 1, %51 ], [ 0, %33 ]
  %54 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %53)
          to label %72 unwind label %44

55:                                               ; preds = %46
  %56 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #6
  br label %77

57:                                               ; preds = %65
  %58 = add nuw nsw i64 %.022, 1
  %59 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11) #6
  %60 = icmp ult i64 %58, %59
  br i1 %60, label %.lr.ph, label %.critedge.invoke, !llvm.loop !12

.lr.ph:                                           ; preds = %.preheader, %57
  %.022 = phi i64 [ %58, %57 ], [ 0, %.preheader ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %8) #6
  %61 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) @_Z1NB5cxx11, i64 noundef %.022)
  %62 = load i8, ptr %61, align 1, !tbaa !11
  %63 = sext i8 %62 to i64
  store i64 %63, ptr %8, align 8, !tbaa !8
  %64 = invoke noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48) %1, ptr noundef nonnull align 8 dereferenceable(8) %8)
          to label %65 unwind label %66

65:                                               ; preds = %.lr.ph
  %.not18 = icmp eq i64 %64, 0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #6
  br i1 %.not18, label %57, label %.critedge.invoke

66:                                               ; preds = %.lr.ph
  %67 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %8) #6
  br label %77

68:                                               ; preds = %.critedge.invoke
  %69 = landingpad { ptr, i32 }
          cleanup
  br label %77

.critedge.invoke:                                 ; preds = %65, %57, %.preheader
  %70 = phi i32 [ -1, %.preheader ], [ -1, %57 ], [ 2, %65 ]
  %71 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i32 noundef %70)
          to label %72 unwind label %68

72:                                               ; preds = %.critedge.invoke, %.invoke
  %73 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, i8 noundef signext 10)
          to label %74 unwind label %44

74:                                               ; preds = %72
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %1) #6
  %75 = load i64, ptr @T, align 8, !tbaa !8
  %76 = add nsw i64 %75, -1
  store i64 %76, ptr @T, align 8, !tbaa !8
  %.not = icmp eq i64 %75, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph24, !llvm.loop !14

77:                                               ; preds = %66, %68, %55, %44, %42, %40, %38, %36, %34
  %.pn20 = phi { ptr, i32 } [ %45, %44 ], [ %56, %55 ], [ %43, %42 ], [ %41, %40 ], [ %39, %38 ], [ %37, %36 ], [ %35, %34 ], [ %69, %68 ], [ %67, %66 ]
  call void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48) %1) #6
  call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn20

._crit_edge:                                      ; preds = %74, %0
  ret i32 0
}

; Function Attrs: mustprogress nounwind uwtable
declare noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264), ptr noundef) local_unnamed_addr #1 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #2

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

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #4

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEEC2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
declare dso_local { ptr, i8 } @_ZNSt3setIxSt4lessIxESaIxEE6insertEOx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 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) #4

; Function Attrs: mustprogress uwtable
declare dso_local noundef i64 @_ZNKSt3setIxSt4lessIxESaIxEE5countERKx(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #3 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 #1 align 2

; Function Attrs: mustprogress nounwind uwtable
declare noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32)) local_unnamed_addr #1 align 2

declare noundef nonnull align 8 dereferenceable(8) ptr @_ZNSolsEi(ptr noundef nonnull align 8 dereferenceable(8), i32 noundef) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress uwtable
declare noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8), i8 noundef signext) local_unnamed_addr #5

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt3setIxSt4lessIxESaIxEED2Ev(ptr noundef nonnull align 8 dereferenceable(48)) unnamed_addr #1 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 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 #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 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 nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = !{!"vtable pointer", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long long", !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}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopInstSimplifyPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimplifyCFGPass,TailCallElimPass