; LLVM IR from eyangch/competitive-programming :: USACOcontests/bronze/2022.12 (reverse_engineering)

; 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::multimap" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, long long>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, long long>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, long long>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, long long>>, std::less<std::__cxx11::basic_string<char>>>::_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 }
%"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] }
%"struct.std::pair" = type { %"class.std::__cxx11::basic_string", i64 }
%"struct.std::_Rb_tree_iterator" = type { ptr }

@T = external dso_local global i64, align 8
@N = external dso_local global i64, align 8
@M = external dso_local global i64, align 8
@_Z1AB5cxx11 = external dso_local global %"class.std::multimap", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z3uwuxc(i64 noundef, i8 noundef signext) #0

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

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

declare i32 @__gxx_personality_v0(...)

; 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 uwtable
declare dso_local void @_Z2rmxc(i64 noundef, i8 noundef signext) #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca i32, align 4
  %2 = alloca i64, align 8
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  %4 = alloca i64, align 8
  %5 = alloca ptr, align 8
  %6 = alloca i32, align 4
  %7 = alloca %"struct.std::pair", align 8
  %8 = alloca %"struct.std::_Rb_tree_iterator", align 8
  %9 = alloca i8, align 1
  %10 = alloca i64, align 8
  %11 = alloca i8, align 1
  %12 = alloca i64, align 8
  %13 = alloca i8, align 1
  %14 = alloca i8, align 1
  %15 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  %16 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %17 = getelementptr i8, ptr %16, i64 -24
  %18 = load i64, ptr %17, align 8
  %19 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %18
  %20 = call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %19, ptr noundef null)
  %21 = call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %22 = 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 %23

23:                                               ; preds = %118, %0
  %24 = load i64, ptr @T, align 8, !tbaa !8
  %25 = add nsw i64 %24, -1
  store i64 %25, ptr @T, align 8, !tbaa !8
  %26 = icmp ne i64 %24, 0
  br i1 %26, label %27, label %119

27:                                               ; preds = %23
  %28 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @N)
  %29 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %28, ptr noundef nonnull align 8 dereferenceable(8) @M)
  call void @_ZNSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) @_Z1AB5cxx11) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #7
  store i64 0, ptr %2, align 8, !tbaa !8
  br label %30

30:                                               ; preds = %44, %27
  %31 = load i64, ptr %2, align 8, !tbaa !8
  %32 = load i64, ptr @M, align 8, !tbaa !8
  %33 = icmp slt i64 %31, %32
  br i1 %33, label %35, label %34

34:                                               ; preds = %30
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #7
  br label %61

35:                                               ; preds = %30
  call void @llvm.lifetime.start.p0(i64 32, ptr %3) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #7
  %36 = 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) %3)
          to label %37 unwind label %47

37:                                               ; preds = %35
  %38 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %36, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %39 unwind label %47

39:                                               ; preds = %37
  call void @llvm.lifetime.start.p0(i64 40, ptr %7) #7
  invoke void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExEC2IRS5_RxTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISC_SD_EEEbE4typeELb1EEEOSC_OSD_(ptr noundef nonnull align 8 dereferenceable(40) %7, ptr noundef nonnull align 8 dereferenceable(32) %3, ptr noundef nonnull align 8 dereferenceable(8) %4)
          to label %40 unwind label %51

40:                                               ; preds = %39
  %41 = invoke ptr @_ZNSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE6insertEOSA_(ptr noundef nonnull align 8 dereferenceable(48) @_Z1AB5cxx11, ptr noundef nonnull align 8 dereferenceable(40) %7)
          to label %42 unwind label %55

42:                                               ; preds = %40
  %43 = getelementptr inbounds %"struct.std::_Rb_tree_iterator", ptr %8, i32 0, i32 0
  store ptr %41, ptr %43, align 8
  call void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %7) #7
  call void @llvm.lifetime.end.p0(i64 40, ptr %7) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #7
  br label %44

44:                                               ; preds = %42
  %45 = load i64, ptr %2, align 8, !tbaa !8
  %46 = add nsw i64 %45, 1
  store i64 %46, ptr %2, align 8, !tbaa !8
  br label %30, !llvm.loop !11

47:                                               ; preds = %37, %35
  %48 = landingpad { ptr, i32 }
          cleanup
  %49 = extractvalue { ptr, i32 } %48, 0
  store ptr %49, ptr %5, align 8
  %50 = extractvalue { ptr, i32 } %48, 1
  store i32 %50, ptr %6, align 4
  br label %60

51:                                               ; preds = %39
  %52 = landingpad { ptr, i32 }
          cleanup
  %53 = extractvalue { ptr, i32 } %52, 0
  store ptr %53, ptr %5, align 8
  %54 = extractvalue { ptr, i32 } %52, 1
  store i32 %54, ptr %6, align 4
  br label %59

55:                                               ; preds = %40
  %56 = landingpad { ptr, i32 }
          cleanup
  %57 = extractvalue { ptr, i32 } %56, 0
  store ptr %57, ptr %5, align 8
  %58 = extractvalue { ptr, i32 } %56, 1
  store i32 %58, ptr %6, align 4
  call void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %7) #7
  br label %59

59:                                               ; preds = %55, %51
  call void @llvm.lifetime.end.p0(i64 40, ptr %7) #7
  br label %60

60:                                               ; preds = %59, %47
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #7
  br label %121

61:                                               ; preds = %34
  call void @llvm.lifetime.start.p0(i64 1, ptr %9) #7
  store i8 1, ptr %9, align 1, !tbaa !13
  br label %62

62:                                               ; preds = %108, %61
  %63 = call noundef i64 @_ZNKSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @_Z1AB5cxx11) #7
  %64 = icmp ne i64 %63, 0
  br i1 %64, label %65, label %109

65:                                               ; preds = %62
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #7
  store i64 -1, ptr %10, align 8, !tbaa !8
  call void @llvm.lifetime.start.p0(i64 1, ptr %11) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #7
  store i64 0, ptr %12, align 8, !tbaa !8
  br label %66

66:                                               ; preds = %95, %65
  %67 = load i64, ptr %12, align 8, !tbaa !8
  %68 = load i64, ptr @N, align 8, !tbaa !8
  %69 = icmp slt i64 %67, %68
  br i1 %69, label %70, label %75

70:                                               ; preds = %66
  %71 = load i64, ptr %10, align 8, !tbaa !8
  %72 = xor i64 %71, -1
  %73 = icmp ne i64 %72, 0
  %74 = xor i1 %73, true
  br label %75

75:                                               ; preds = %70, %66
  %76 = phi i1 [ false, %66 ], [ %74, %70 ]
  br i1 %76, label %78, label %77

77:                                               ; preds = %75
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #7
  br label %98

78:                                               ; preds = %75
  call void @llvm.lifetime.start.p0(i64 1, ptr %13) #7
  %79 = load i64, ptr %12, align 8, !tbaa !8
  %80 = call noundef zeroext i1 @_Z3uwuxc(i64 noundef %79, i8 noundef signext 48)
  %81 = zext i1 %80 to i8
  store i8 %81, ptr %13, align 1, !tbaa !13
  call void @llvm.lifetime.start.p0(i64 1, ptr %14) #7
  %82 = load i64, ptr %12, align 8, !tbaa !8
  %83 = call noundef zeroext i1 @_Z3uwuxc(i64 noundef %82, i8 noundef signext 49)
  %84 = zext i1 %83 to i8
  store i8 %84, ptr %14, align 1, !tbaa !13
  %85 = load i8, ptr %13, align 1, !tbaa !13, !range !15, !noundef !16
  %86 = trunc i8 %85 to i1
  br i1 %86, label %87, label %89

87:                                               ; preds = %78
  %88 = load i64, ptr %12, align 8, !tbaa !8
  store i64 %88, ptr %10, align 8, !tbaa !8
  store i8 48, ptr %11, align 1, !tbaa !17
  br label %89

89:                                               ; preds = %87, %78
  %90 = load i8, ptr %14, align 1, !tbaa !13, !range !15, !noundef !16
  %91 = trunc i8 %90 to i1
  br i1 %91, label %92, label %94

92:                                               ; preds = %89
  %93 = load i64, ptr %12, align 8, !tbaa !8
  store i64 %93, ptr %10, align 8, !tbaa !8
  store i8 49, ptr %11, align 1, !tbaa !17
  br label %94

94:                                               ; preds = %92, %89
  call void @llvm.lifetime.end.p0(i64 1, ptr %14) #7
  call void @llvm.lifetime.end.p0(i64 1, ptr %13) #7
  br label %95

95:                                               ; preds = %94
  %96 = load i64, ptr %12, align 8, !tbaa !8
  %97 = add nsw i64 %96, 1
  store i64 %97, ptr %12, align 8, !tbaa !8
  br label %66, !llvm.loop !18

98:                                               ; preds = %77
  %99 = load i64, ptr %10, align 8, !tbaa !8
  %100 = xor i64 %99, -1
  %101 = icmp ne i64 %100, 0
  br i1 %101, label %103, label %102

102:                                              ; preds = %98
  store i8 0, ptr %9, align 1, !tbaa !13
  store i32 8, ptr %15, align 4
  br label %106

103:                                              ; preds = %98
  %104 = load i64, ptr %10, align 8, !tbaa !8
  %105 = load i8, ptr %11, align 1, !tbaa !17
  call void @_Z2rmxc(i64 noundef %104, i8 noundef signext %105)
  store i32 0, ptr %15, align 4
  br label %106

106:                                              ; preds = %103, %102
  call void @llvm.lifetime.end.p0(i64 1, ptr %11) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #7
  %107 = load i32, ptr %15, align 4
  switch i32 %107, label %126 [
    i32 0, label %108
    i32 8, label %109
  ]

108:                                              ; preds = %106
  br label %62, !llvm.loop !19

109:                                              ; preds = %106, %62
  %110 = load i8, ptr %9, align 1, !tbaa !13, !range !15, !noundef !16
  %111 = trunc i8 %110 to i1
  br i1 %111, label %112, label %115

112:                                              ; preds = %109
  %113 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str)
  %114 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %113, i8 noundef signext 10)
  br label %118

115:                                              ; preds = %109
  %116 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef @.str.2)
  %117 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %116, i8 noundef signext 10)
  br label %118

118:                                              ; preds = %115, %112
  call void @llvm.lifetime.end.p0(i64 1, ptr %9) #7
  br label %23, !llvm.loop !20

119:                                              ; preds = %23
  %120 = load i32, ptr %1, align 4
  ret i32 %120

121:                                              ; preds = %60
  %122 = load ptr, ptr %5, align 8
  %123 = load i32, ptr %6, align 4
  %124 = insertvalue { ptr, i32 } poison, ptr %122, 0
  %125 = insertvalue { ptr, i32 } %124, i32 %123, 1
  resume { ptr, i32 } %125

126:                                              ; preds = %106
  unreachable
}

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

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) #4

; 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)) #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 2

; 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)) #4

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE6insertEOSA_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(40)) #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExEC2IRS5_RxTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISC_SD_EEEbE4typeELb1EEEOSC_OSD_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) #2 align 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) #6

; 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

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 = { 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 #4 = { "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 = !{!"long long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = !{!14, !14, i64 0}
!14 = !{!"bool", !10, i64 0}
!15 = !{i8 0, i8 2}
!16 = !{}
!17 = !{!10, !10, i64 0}
!18 = distinct !{!18, !12}
!19 = distinct !{!19, !12}
!20 = distinct !{!20, !12}


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

%"class.std::multimap" = type { %"class.std::_Rb_tree" }
%"class.std::_Rb_tree" = type { %"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, long long>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, long long>>, std::less<std::__cxx11::basic_string<char>>>::_Rb_tree_impl" }
%"struct.std::_Rb_tree<std::__cxx11::basic_string<char>, std::pair<const std::__cxx11::basic_string<char>, long long>, std::_Select1st<std::pair<const std::__cxx11::basic_string<char>, long long>>, std::less<std::__cxx11::basic_string<char>>>::_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 }
%"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] }
%"struct.std::pair" = type { %"class.std::__cxx11::basic_string", i64 }

@T = external dso_local global i64, align 8
@N = external dso_local global i64, align 8
@M = external dso_local global i64, align 8
@_Z1AB5cxx11 = external dso_local global %"class.std::multimap", align 8
@_ZSt3cin = external global %"class.std::basic_istream", align 8
@_ZSt4cout = external global %"class.std::basic_ostream", align 8
@.str = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [4 x i8], align 1

; Function Attrs: mustprogress uwtable
declare dso_local noundef zeroext i1 @_Z3uwuxc(i64 noundef, i8 noundef signext) local_unnamed_addr #0

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

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

declare i32 @__gxx_personality_v0(...)

; 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 uwtable
declare dso_local void @_Z2rmxc(i64 noundef, i8 noundef signext) local_unnamed_addr #0

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() local_unnamed_addr #3 personality ptr @__gxx_personality_v0 {
  %1 = alloca %"class.std::__cxx11::basic_string", align 8
  %2 = alloca i64, align 8
  %3 = alloca %"struct.std::pair", align 8
  %4 = load ptr, ptr @_ZSt3cin, align 8, !tbaa !5
  %5 = getelementptr i8, ptr %4, i64 -24
  %6 = load i64, ptr %5, align 8
  %7 = getelementptr inbounds i8, ptr @_ZSt3cin, i64 %6
  %8 = tail call noundef ptr @_ZNSt9basic_iosIcSt11char_traitsIcEE3tieEPSo(ptr noundef nonnull align 8 dereferenceable(264) %7, ptr noundef null)
  %9 = tail call noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext false)
  %10 = 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)
  %11 = load i64, ptr @T, align 8, !tbaa !8
  %12 = add nsw i64 %11, -1
  store i64 %12, ptr @T, align 8, !tbaa !8
  %.not57 = icmp eq i64 %11, 0
  br i1 %.not57, label %._crit_edge61, label %.lr.ph60

.lr.ph60:                                         ; preds = %0, %._crit_edge55
  %.02158 = phi i8 [ %.542, %._crit_edge55 ], [ undef, %0 ]
  %13 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) @_ZSt3cin, ptr noundef nonnull align 8 dereferenceable(8) @N)
  %14 = call noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %13, ptr noundef nonnull align 8 dereferenceable(8) @M)
  call void @_ZNSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48) @_Z1AB5cxx11) #7
  %15 = load i64, ptr @M, align 8, !tbaa !8
  %16 = icmp sgt i64 %15, 0
  br i1 %16, label %.lr.ph, label %.preheader44

.preheader44:                                     ; preds = %24, %.lr.ph60
  %17 = call noundef i64 @_ZNKSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @_Z1AB5cxx11) #7
  %.not3153 = icmp eq i64 %17, 0
  br i1 %.not3153, label %._crit_edge55, label %.preheader

.lr.ph:                                           ; preds = %.lr.ph60, %24
  %.01846 = phi i64 [ %25, %24 ], [ 0, %.lr.ph60 ]
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %1) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEC2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #7
  %18 = 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 %19 unwind label %28

19:                                               ; preds = %.lr.ph
  %20 = invoke noundef nonnull align 8 dereferenceable(16) ptr @_ZNSirsERx(ptr noundef nonnull align 8 dereferenceable(16) %18, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %21 unwind label %28

21:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 40, ptr nonnull %3) #7
  invoke void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExEC2IRS5_RxTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISC_SD_EEEbE4typeELb1EEEOSC_OSD_(ptr noundef nonnull align 8 dereferenceable(40) %3, ptr noundef nonnull align 8 dereferenceable(32) %1, ptr noundef nonnull align 8 dereferenceable(8) %2)
          to label %22 unwind label %30

22:                                               ; preds = %21
  %23 = invoke ptr @_ZNSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE6insertEOSA_(ptr noundef nonnull align 8 dereferenceable(48) @_Z1AB5cxx11, ptr noundef nonnull align 8 dereferenceable(40) %3)
          to label %24 unwind label %32

24:                                               ; preds = %22
  call void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %3) #7
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %3) #7
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #7
  %25 = add nuw nsw i64 %.01846, 1
  %26 = load i64, ptr @M, align 8, !tbaa !8
  %27 = icmp slt i64 %25, %26
  br i1 %27, label %.lr.ph, label %.preheader44, !llvm.loop !11

28:                                               ; preds = %19, %.lr.ph
  %29 = landingpad { ptr, i32 }
          cleanup
  br label %35

30:                                               ; preds = %21
  %31 = landingpad { ptr, i32 }
          cleanup
  br label %34

32:                                               ; preds = %22
  %33 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExED2Ev(ptr noundef nonnull align 8 dereferenceable(40) %3) #7
  br label %34

34:                                               ; preds = %32, %30
  %.pn = phi { ptr, i32 } [ %33, %32 ], [ %31, %30 ]
  call void @llvm.lifetime.end.p0(i64 40, ptr nonnull %3) #7
  br label %35

35:                                               ; preds = %34, %28
  %.pn.pn = phi { ptr, i32 } [ %.pn, %34 ], [ %29, %28 ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #7
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %1) #7
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %1) #7
  resume { ptr, i32 } %.pn.pn

.preheader:                                       ; preds = %.preheader44, %44
  %.12254 = phi i8 [ %.4, %44 ], [ %.02158, %.preheader44 ]
  %36 = load i64, ptr @N, align 8, !tbaa !8
  %37 = icmp sgt i64 %36, 0
  br i1 %37, label %.lr.ph50, label %._crit_edge55

._crit_edge:                                      ; preds = %.lr.ph50
  br i1 %40, label %44, label %._crit_edge55

.lr.ph50:                                         ; preds = %.preheader, %.lr.ph50
  %.02049 = phi i64 [ %41, %.lr.ph50 ], [ 0, %.preheader ]
  %.248 = phi i8 [ %.4, %.lr.ph50 ], [ %.12254, %.preheader ]
  %38 = call noundef zeroext i1 @_Z3uwuxc(i64 noundef %.02049, i8 noundef signext 48)
  %39 = call noundef zeroext i1 @_Z3uwuxc(i64 noundef %.02049, i8 noundef signext 49)
  %spec.select35 = select i1 %38, i8 48, i8 %.248
  %40 = or i1 %38, %39
  %.4 = select i1 %39, i8 49, i8 %spec.select35
  %41 = add nuw nsw i64 %.02049, 1
  %42 = load i64, ptr @N, align 8, !tbaa !8
  %43 = icmp sge i64 %41, %42
  %.not65 = or i1 %43, %40
  br i1 %.not65, label %._crit_edge, label %.lr.ph50, !llvm.loop !13

44:                                               ; preds = %._crit_edge
  call void @_Z2rmxc(i64 noundef %.02049, i8 noundef signext %.4)
  %45 = call noundef i64 @_ZNKSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48) @_Z1AB5cxx11) #7
  %.not31 = icmp eq i64 %45, 0
  br i1 %.not31, label %._crit_edge55, label %.preheader

._crit_edge55:                                    ; preds = %._crit_edge, %.preheader, %44, %.preheader44
  %.str.2.sink = phi ptr [ @.str, %.preheader44 ], [ @.str, %44 ], [ @.str.2, %.preheader ], [ @.str.2, %._crit_edge ]
  %.542 = phi i8 [ %.02158, %.preheader44 ], [ %.4, %44 ], [ %.12254, %.preheader ], [ %.4, %._crit_edge ]
  %46 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc(ptr noundef nonnull align 8 dereferenceable(8) @_ZSt4cout, ptr noundef nonnull %.str.2.sink)
  %47 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_c(ptr noundef nonnull align 8 dereferenceable(8) %46, i8 noundef signext 10)
  %48 = load i64, ptr @T, align 8, !tbaa !8
  %49 = add nsw i64 %48, -1
  store i64 %49, ptr @T, align 8, !tbaa !8
  %.not = icmp eq i64 %48, 0
  br i1 %.not, label %._crit_edge61, label %.lr.ph60, !llvm.loop !14

._crit_edge61:                                    ; preds = %._crit_edge55, %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 #2 align 2

declare noundef zeroext i1 @_ZNSt8ios_base15sync_with_stdioEb(i1 noundef zeroext) local_unnamed_addr #4

; 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 #0 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZNSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE5clearEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 2

; 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 #4

; Function Attrs: mustprogress uwtable
declare dso_local ptr @_ZNSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE6insertEOSA_(ptr noundef nonnull align 8 dereferenceable(48), ptr noundef nonnull align 8 dereferenceable(40)) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExEC2IRS5_RxTnNSt9enable_ifIXaaclsr5_PCCPE22_MoveConstructiblePairIT_T0_EEclsr5_PCCPE30_ImplicitlyMoveConvertiblePairISC_SD_EEEbE4typeELb1EEEOSC_OSD_(ptr noundef nonnull align 8 dereferenceable(40), ptr noundef nonnull align 8 dereferenceable(32), ptr noundef nonnull align 8 dereferenceable(8)) unnamed_addr #0 align 2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZNSt4pairIKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExED2Ev(ptr noundef nonnull align 8 dereferenceable(40)) unnamed_addr #5 align 2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i64 @_ZNKSt8multimapINSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEExSt4lessIS5_ESaISt4pairIKS5_xEEE4sizeEv(ptr noundef nonnull align 8 dereferenceable(48)) local_unnamed_addr #2 align 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 #6

; 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

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 = { 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 #4 = { "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 = !{!"long long", !10, i64 0}
!10 = !{!"omnipotent char", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}
!13 = distinct !{!13, !12}
!14 = distinct !{!14, !12}


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