; LLVM IR from AdarshGaur/Competitive-Programming :: Codeforces/Educational Codeforces Round 132 (Rated for Div. 2)/C. Recover an RBS_a6c80692 (Z5solvev)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"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 [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  %6 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %7 = alloca %"class.__gnu_cxx::__normal_iterator", align 8
  %8 = alloca i8, align 1
  %9 = alloca i64, align 8
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  %12 = alloca i32, align 4
  %13 = alloca i64, align 8
  %14 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr %1) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %15 = 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) %1)
          to label %16 unwind label %38

16:                                               ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #6
  %17 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  store i64 %17, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #6
  %18 = load i64, ptr %4, align 8, !tbaa !5
  %19 = sdiv i64 %18, 2
  %20 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %21 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  store ptr %20, ptr %21, align 8
  %22 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %23 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  store ptr %22, ptr %23, align 8
  call void @llvm.lifetime.start.p0(i64 1, ptr %8) #6
  store i8 40, ptr %8, align 1, !tbaa !9
  %24 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %6, i32 0, i32 0
  %25 = load ptr, ptr %24, align 8
  %26 = getelementptr inbounds %"class.__gnu_cxx::__normal_iterator", ptr %7, i32 0, i32 0
  %27 = load ptr, ptr %26, align 8
  %28 = invoke noundef i64 @_ZSt5countIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEcENSt15iterator_traitsIT_E15difference_typeESB_SB_RKT0_(ptr %25, ptr %27, ptr noundef nonnull align 1 dereferenceable(1) %8)
          to label %29 unwind label %42

29:                                               ; preds = %16
  %30 = sub nsw i64 %19, %28
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  store i64 %30, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #6
  store i64 -1, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #6
  %31 = load i64, ptr %4, align 8, !tbaa !5
  %32 = add nsw i64 %31, 1
  store i64 %32, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #6
  store i64 0, ptr %11, align 8, !tbaa !5
  br label %33

33:                                               ; preds = %78, %29
  %34 = load i64, ptr %11, align 8, !tbaa !5
  %35 = load i64, ptr %4, align 8, !tbaa !5
  %36 = icmp slt i64 %34, %35
  br i1 %36, label %46, label %37

37:                                               ; preds = %33
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  br label %81

38:                                               ; preds = %0
  %39 = landingpad { ptr, i32 }
          cleanup
  %40 = extractvalue { ptr, i32 } %39, 0
  store ptr %40, ptr %2, align 8
  %41 = extractvalue { ptr, i32 } %39, 1
  store i32 %41, ptr %3, align 4
  br label %155

42:                                               ; preds = %16
  %43 = landingpad { ptr, i32 }
          cleanup
  %44 = extractvalue { ptr, i32 } %43, 0
  store ptr %44, ptr %2, align 8
  %45 = extractvalue { ptr, i32 } %43, 1
  store i32 %45, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 1, ptr %8) #6
  br label %154

46:                                               ; preds = %33
  %47 = load i64, ptr %11, align 8, !tbaa !5
  %48 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %47)
          to label %49 unwind label %65

49:                                               ; preds = %46
  %50 = load i8, ptr %48, align 1, !tbaa !9
  %51 = sext i8 %50 to i32
  %52 = icmp eq i32 %51, 63
  br i1 %52, label %53, label %77

53:                                               ; preds = %49
  %54 = load i64, ptr %5, align 8, !tbaa !5
  %55 = icmp ne i64 %54, 0
  br i1 %55, label %56, label %69

56:                                               ; preds = %53
  %57 = load i64, ptr %5, align 8, !tbaa !5
  %58 = add nsw i64 %57, -1
  store i64 %58, ptr %5, align 8, !tbaa !5
  %59 = load i64, ptr %11, align 8, !tbaa !5
  %60 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %59)
          to label %61 unwind label %65

61:                                               ; preds = %56
  store i8 40, ptr %60, align 1, !tbaa !9
  %62 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %9, ptr noundef nonnull align 8 dereferenceable(8) %11)
          to label %63 unwind label %65

63:                                               ; preds = %61
  %64 = load i64, ptr %62, align 8, !tbaa !5
  store i64 %64, ptr %9, align 8, !tbaa !5
  br label %76

65:                                               ; preds = %72, %69, %61, %56, %46
  %66 = landingpad { ptr, i32 }
          cleanup
  %67 = extractvalue { ptr, i32 } %66, 0
  store ptr %67, ptr %2, align 8
  %68 = extractvalue { ptr, i32 } %66, 1
  store i32 %68, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #6
  br label %153

69:                                               ; preds = %53
  %70 = load i64, ptr %11, align 8, !tbaa !5
  %71 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %70)
          to label %72 unwind label %65

72:                                               ; preds = %69
  store i8 41, ptr %71, align 1, !tbaa !9
  %73 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %10, ptr noundef nonnull align 8 dereferenceable(8) %11)
          to label %74 unwind label %65

74:                                               ; preds = %72
  %75 = load i64, ptr %73, align 8, !tbaa !5
  store i64 %75, ptr %10, align 8, !tbaa !5
  br label %76

76:                                               ; preds = %74, %63
  br label %77

77:                                               ; preds = %76, %49
  br label %78

78:                                               ; preds = %77
  %79 = load i64, ptr %11, align 8, !tbaa !5
  %80 = add nsw i64 %79, 1
  store i64 %80, ptr %11, align 8, !tbaa !5
  br label %33, !llvm.loop !10

81:                                               ; preds = %37
  %82 = load i64, ptr %9, align 8, !tbaa !5
  %83 = icmp eq i64 %82, -1
  br i1 %83, label %89, label %84

84:                                               ; preds = %81
  %85 = load i64, ptr %10, align 8, !tbaa !5
  %86 = load i64, ptr %4, align 8, !tbaa !5
  %87 = add nsw i64 %86, 1
  %88 = icmp eq i64 %85, %87
  br i1 %88, label %89, label %98

89:                                               ; preds = %84, %81
  %90 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
          to label %91 unwind label %94

91:                                               ; preds = %89
  %92 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %90, ptr noundef @.str.1)
          to label %93 unwind label %94

93:                                               ; preds = %91
  store i32 1, ptr %12, align 4
  br label %145

94:                                               ; preds = %101, %98, %91, %89
  %95 = landingpad { ptr, i32 }
          cleanup
  %96 = extractvalue { ptr, i32 } %95, 0
  store ptr %96, ptr %2, align 8
  %97 = extractvalue { ptr, i32 } %95, 1
  store i32 %97, ptr %3, align 4
  br label %153

98:                                               ; preds = %84
  %99 = load i64, ptr %9, align 8, !tbaa !5
  %100 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %99)
          to label %101 unwind label %94

101:                                              ; preds = %98
  %102 = load i64, ptr %10, align 8, !tbaa !5
  %103 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %102)
          to label %104 unwind label %94

104:                                              ; preds = %101
  call void @_ZSt4swapIcENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 1 dereferenceable(1) %100, ptr noundef nonnull align 1 dereferenceable(1) %103) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #6
  store i64 0, ptr %13, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #6
  store i64 0, ptr %14, align 8, !tbaa !5
  br label %105

105:                                              ; preds = %132, %104
  %106 = load i64, ptr %14, align 8, !tbaa !5
  %107 = load i64, ptr %4, align 8, !tbaa !5
  %108 = icmp slt i64 %106, %107
  br i1 %108, label %110, label %109

109:                                              ; preds = %105
  store i32 5, ptr %12, align 4
  br label %135

110:                                              ; preds = %105
  %111 = load i64, ptr %14, align 8, !tbaa !5
  %112 = invoke noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %111)
          to label %113 unwind label %120

113:                                              ; preds = %110
  %114 = load i8, ptr %112, align 1, !tbaa !9
  %115 = sext i8 %114 to i32
  %116 = icmp eq i32 %115, 40
  br i1 %116, label %117, label %124

117:                                              ; preds = %113
  %118 = load i64, ptr %13, align 8, !tbaa !5
  %119 = add nsw i64 %118, 1
  store i64 %119, ptr %13, align 8, !tbaa !5
  br label %127

120:                                              ; preds = %110
  %121 = landingpad { ptr, i32 }
          cleanup
  %122 = extractvalue { ptr, i32 } %121, 0
  store ptr %122, ptr %2, align 8
  %123 = extractvalue { ptr, i32 } %121, 1
  store i32 %123, ptr %3, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  br label %152

124:                                              ; preds = %113
  %125 = load i64, ptr %13, align 8, !tbaa !5
  %126 = add nsw i64 %125, -1
  store i64 %126, ptr %13, align 8, !tbaa !5
  br label %127

127:                                              ; preds = %124, %117
  %128 = load i64, ptr %13, align 8, !tbaa !5
  %129 = icmp slt i64 %128, 0
  br i1 %129, label %130, label %131

130:                                              ; preds = %127
  store i32 5, ptr %12, align 4
  br label %135

131:                                              ; preds = %127
  br label %132

132:                                              ; preds = %131
  %133 = load i64, ptr %14, align 8, !tbaa !5
  %134 = add nsw i64 %133, 1
  store i64 %134, ptr %14, align 8, !tbaa !5
  br label %105, !llvm.loop !12

135:                                              ; preds = %130, %109
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #6
  br label %136

136:                                              ; preds = %135
  %137 = load i64, ptr %13, align 8, !tbaa !5
  %138 = icmp eq i64 %137, 0
  %139 = zext i1 %138 to i64
  %140 = select i1 %138, ptr @.str.2, ptr @.str
  %141 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef %140)
          to label %142 unwind label %148

142:                                              ; preds = %136
  %143 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %141, ptr noundef @.str.1)
          to label %144 unwind label %148

144:                                              ; preds = %142
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  store i32 0, ptr %12, align 4
  br label %145

145:                                              ; preds = %144, %93
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %1) #6
  %146 = load i32, ptr %12, align 4
  switch i32 %146, label %161 [
    i32 0, label %147
    i32 1, label %147
  ]

147:                                              ; preds = %145, %145
  ret void

148:                                              ; preds = %142, %136
  %149 = landingpad { ptr, i32 }
          cleanup
  %150 = extractvalue { ptr, i32 } %149, 0
  store ptr %150, ptr %2, align 8
  %151 = extractvalue { ptr, i32 } %149, 1
  store i32 %151, ptr %3, align 4
  br label %152

152:                                              ; preds = %148, %120
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #6
  br label %153

153:                                              ; preds = %152, %94, %65
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #6
  br label %154

154:                                              ; preds = %153, %42
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #6
  br label %155

155:                                              ; preds = %154, %38
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr %1) #6
  br label %156

156:                                              ; preds = %155
  %157 = load ptr, ptr %2, align 8
  %158 = load i32, ptr %3, align 4
  %159 = insertvalue { ptr, i32 } poison, ptr %157, 0
  %160 = insertvalue { ptr, i32 } %159, i32 %158, 1
  resume { ptr, i32 } %160

161:                                              ; preds = %145
  unreachable
}

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

; 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)) #3

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef i64 @_ZSt5countIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEcENSt15iterator_traitsIT_E15difference_typeESB_SB_RKT0_(ptr, ptr, ptr noundef nonnull align 1 dereferenceable(1)) #4

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

; Function Attrs: mustprogress nounwind uwtable
declare 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) #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) #4

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIcENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) #5

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

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 = { 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 #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 = { nounwind }

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

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


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

%"class.std::basic_istream" = type { ptr, i64, %"class.std::basic_ios" }
%"class.std::basic_ios" = type { %"class.std::ios_base", ptr, i8, i8, ptr, ptr, ptr, ptr }
%"class.std::ios_base" = type { ptr, i64, i64, i32, i32, i32, ptr, %"struct.std::ios_base::_Words", [8 x %"struct.std::ios_base::_Words"], i32, ptr, %"class.std::locale" }
%"struct.std::ios_base::_Words" = type { ptr, i64 }
%"class.std::locale" = type { ptr }
%"class.std::basic_ostream" = type { ptr, %"class.std::basic_ios" }
%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }

@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z5solvev() local_unnamed_addr #0 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca i8, align 1
  %3 = alloca i64, align 8
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %6 = 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) %1)
          to label %7 unwind label %19

7:                                                ; preds = %0
  %8 = call noundef i64 @_ZNKSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %9 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE5beginEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  %10 = call ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE3endEv(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.start.p0(i64 1, ptr nonnull %2) #6
  store i8 40, ptr %2, align 1, !tbaa !5
  %11 = invoke noundef i64 @_ZSt5countIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEcENSt15iterator_traitsIT_E15difference_typeESB_SB_RKT0_(ptr %9, ptr %10, ptr noundef nonnull align 1 dereferenceable(1) %2)
          to label %12 unwind label %21

12:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #6
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #6
  store i64 -1, ptr %3, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #6
  %13 = add nsw i64 %8, 1
  store i64 %13, ptr %4, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #6
  store i64 0, ptr %5, align 8, !tbaa !8
  %14 = icmp sgt i64 %8, 0
  br i1 %14, label %.lr.ph.preheader, label %._crit_edge.thread

._crit_edge.thread:                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  br label %42

.lr.ph.preheader:                                 ; preds = %12
  %15 = lshr i64 %8, 1
  %16 = sub nsw i64 %15, %11
  br label %.lr.ph

._crit_edge:                                      ; preds = %38
  %.pre = load i64, ptr %3, align 8, !tbaa !8
  %.pre41 = load i64, ptr %4, align 8
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #6
  %17 = icmp eq i64 %.pre, -1
  %18 = icmp eq i64 %.pre41, %13
  %or.cond = select i1 %17, i1 true, i1 %18
  br i1 %or.cond, label %42, label %48

19:                                               ; preds = %0
  %20 = landingpad { ptr, i32 }
          cleanup
  br label %67

21:                                               ; preds = %7
  %22 = landingpad { ptr, i32 }
          cleanup
  call void @llvm.lifetime.end.p0(i64 1, ptr nonnull %2) #6
  br label %67

.lr.ph:                                           ; preds = %.lr.ph.preheader, %38
  %.02334 = phi i64 [ %.124, %38 ], [ %16, %.lr.ph.preheader ]
  %storemerge33 = phi i64 [ %40, %38 ], [ 0, %.lr.ph.preheader ]
  %23 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %storemerge33)
  %24 = load i8, ptr %23, align 1, !tbaa !5
  %25 = icmp eq i8 %24, 63
  br i1 %25, label %26, label %38

26:                                               ; preds = %.lr.ph
  %.not = icmp eq i64 %.02334, 0
  br i1 %.not, label %33, label %27

27:                                               ; preds = %26
  %28 = add nsw i64 %.02334, -1
  %29 = load i64, ptr %5, align 8, !tbaa !8
  %30 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %29)
  store i8 40, ptr %30, align 1, !tbaa !5
  %31 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %5)
  %32 = load i64, ptr %31, align 8, !tbaa !8
  store i64 %32, ptr %3, align 8, !tbaa !8
  br label %38

33:                                               ; preds = %26
  %34 = load i64, ptr %5, align 8, !tbaa !8
  %35 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %34)
  store i8 41, ptr %35, align 1, !tbaa !5
  %36 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %4, ptr noundef nonnull align 8 dereferenceable(8) %5)
  %37 = load i64, ptr %36, align 8, !tbaa !8
  store i64 %37, ptr %4, align 8, !tbaa !8
  br label %38

38:                                               ; preds = %.lr.ph, %33, %27
  %.124 = phi i64 [ %28, %27 ], [ 0, %33 ], [ %.02334, %.lr.ph ]
  %39 = load i64, ptr %5, align 8, !tbaa !8
  %40 = add nsw i64 %39, 1
  store i64 %40, ptr %5, align 8, !tbaa !8
  %41 = icmp slt i64 %40, %8
  br i1 %41, label %.lr.ph, label %._crit_edge, !llvm.loop !10

42:                                               ; preds = %._crit_edge.thread, %._crit_edge
  %43 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull @.str)
          to label %44 unwind label %46

44:                                               ; preds = %42
  %45 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %43, ptr noundef nonnull @.str.1)
          to label %63 unwind label %46

46:                                               ; preds = %44, %42
  %47 = landingpad { ptr, i32 }
          cleanup
  br label %66

48:                                               ; preds = %._crit_edge
  %49 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.pre)
  %50 = load i64, ptr %4, align 8, !tbaa !8
  %51 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %50)
  call void @_ZSt4swapIcENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 1 dereferenceable(1) %49, ptr noundef nonnull align 1 dereferenceable(1) %51) #6
  br i1 %14, label %.lr.ph38, label %.loopexit

52:                                               ; preds = %.lr.ph38
  %53 = add nuw nsw i64 %.036, 1
  %exitcond.not = icmp eq i64 %53, %8
  br i1 %exitcond.not, label %._crit_edge39.loopexit, label %.lr.ph38, !llvm.loop !12

._crit_edge39.loopexit:                           ; preds = %52
  %54 = icmp eq i64 %.1, 0
  %55 = select i1 %54, ptr @.str.2, ptr @.str
  br label %.loopexit

.lr.ph38:                                         ; preds = %48, %52
  %.036 = phi i64 [ %53, %52 ], [ 0, %48 ]
  %.01635 = phi i64 [ %.1, %52 ], [ 0, %48 ]
  %56 = call noundef nonnull align 1 dereferenceable(1) ptr @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEixEm(ptr noundef nonnull align 8 dereferenceable(32) %1, i64 noundef %.036)
  %57 = load i8, ptr %56, align 1, !tbaa !5
  %58 = icmp eq i8 %57, 40
  %.1.v = select i1 %58, i64 1, i64 -1
  %.1 = add nsw i64 %.1.v, %.01635
  %59 = icmp slt i64 %.1, 0
  br i1 %59, label %.loopexit, label %52

.loopexit:                                        ; preds = %.lr.ph38, %48, %._crit_edge39.loopexit
  %.2 = phi ptr [ @.str.2, %48 ], [ %55, %._crit_edge39.loopexit ], [ @.str, %.lr.ph38 ]
  %60 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull %.2)
          to label %61 unwind label %64

61:                                               ; preds = %.loopexit
  %62 = invoke noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) %60, ptr noundef nonnull @.str.1)
          to label %63 unwind label %64

63:                                               ; preds = %61, %44
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  ret void

64:                                               ; preds = %61, %.loopexit
  %65 = landingpad { ptr, i32 }
          cleanup
  br label %66

66:                                               ; preds = %64, %46
  %.pn = phi { ptr, i32 } [ %47, %46 ], [ %65, %64 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #6
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #6
  br label %67

67:                                               ; preds = %21, %66, %19
  %.pn.pn.pn = phi { ptr, i32 } [ %20, %19 ], [ %.pn, %66 ], [ %22, %21 ]
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #6
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #6
  resume { ptr, i32 } %.pn.pn.pn
}

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

; Function Attrs: 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 #3

declare i32 @__gxx_personality_v0(...)

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

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef i64 @_ZSt5countIN9__gnu_cxx17__normal_iteratorIPcNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEEEcENSt15iterator_traitsIT_E15difference_typeESB_SB_RKT0_(ptr, ptr, ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #4

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

; Function Attrs: mustprogress nounwind uwtable
declare 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: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3maxIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) local_unnamed_addr #5

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8), ptr noundef nonnull align 8 dereferenceable(8)) 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 #4

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIcENSt9enable_ifIXsr6__and_ISt6__not_ISt15__is_tuple_likeIT_EESt21is_move_constructibleIS3_ESt18is_move_assignableIS3_EEE5valueEvE4typeERS3_SC_(ptr noundef nonnull align 1 dereferenceable(1), ptr noundef nonnull align 1 dereferenceable(1)) local_unnamed_addr #5

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

attributes #0 = { 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 #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { "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 = { 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 #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 = { 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C++ TBAA"}
!8 = !{!9, !9, i64 0}
!9 = !{!"long", !6, i64 0}
!10 = distinct !{!10, !11}
!11 = !{!"llvm.loop.mustprogress"}
!12 = distinct !{!12, !11}


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