; LLVM IR from DionysiosB/CodeForces :: 1954B-MakeItUgly (main)

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

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse uwtable
define dso_local noundef i32 @main() #0 {
  %1 = alloca i32, align 4
  %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 = alloca i64, align 8
  %10 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #4
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %12

12:                                               ; preds = %58, %0
  %13 = load i64, ptr %2, align 8, !tbaa !5
  %14 = add nsw i64 %13, -1
  store i64 %14, ptr %2, align 8, !tbaa !5
  %15 = icmp ne i64 %13, 0
  br i1 %15, label %16, label %59

16:                                               ; preds = %12
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #4
  %17 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #4
  %18 = load i64, ptr %3, align 8, !tbaa !5
  %19 = add nsw i64 %18, 7
  store i64 %19, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #4
  %20 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %5)
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  store i64 -1, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #4
  store i64 1, ptr %7, align 8, !tbaa !5
  br label %21

21:                                               ; preds = %40, %16
  %22 = load i64, ptr %7, align 8, !tbaa !5
  %23 = load i64, ptr %3, align 8, !tbaa !5
  %24 = icmp slt i64 %22, %23
  br i1 %24, label %26, label %25

25:                                               ; preds = %21
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #4
  br label %43

26:                                               ; preds = %21
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  %27 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %8)
  %28 = load i64, ptr %8, align 8, !tbaa !5
  %29 = load i64, ptr %5, align 8, !tbaa !5
  %30 = icmp ne i64 %28, %29
  br i1 %30, label %31, label %39

31:                                               ; preds = %26
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  %32 = load i64, ptr %7, align 8, !tbaa !5
  %33 = sub nsw i64 %32, 1
  %34 = load i64, ptr %6, align 8, !tbaa !5
  %35 = sub nsw i64 %33, %34
  store i64 %35, ptr %9, align 8, !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) %9)
  %37 = load i64, ptr %36, align 8, !tbaa !5
  store i64 %37, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  %38 = load i64, ptr %7, align 8, !tbaa !5
  store i64 %38, ptr %6, align 8, !tbaa !5
  br label %39

39:                                               ; preds = %31, %26
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  br label %40

40:                                               ; preds = %39
  %41 = load i64, ptr %7, align 8, !tbaa !5
  %42 = add nsw i64 %41, 1
  store i64 %42, ptr %7, align 8, !tbaa !5
  br label %21, !llvm.loop !9

43:                                               ; preds = %25
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  %44 = load i64, ptr %3, align 8, !tbaa !5
  %45 = sub nsw i64 %44, 1
  %46 = load i64, ptr %6, align 8, !tbaa !5
  %47 = sub nsw i64 %45, %46
  store i64 %47, ptr %10, align 8, !tbaa !5
  %48 = 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) %10)
  %49 = load i64, ptr %48, align 8, !tbaa !5
  store i64 %49, ptr %4, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  %50 = load i64, ptr %4, align 8, !tbaa !5
  %51 = load i64, ptr %3, align 8, !tbaa !5
  %52 = icmp sge i64 %50, %51
  br i1 %52, label %53, label %55

53:                                               ; preds = %43
  %54 = call i32 @puts(ptr noundef @.str.1)
  br label %58

55:                                               ; preds = %43
  %56 = load i64, ptr %4, align 8, !tbaa !5
  %57 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %56)
  br label %58

58:                                               ; preds = %55, %53
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #4
  br label %12, !llvm.loop !11

59:                                               ; preds = %12
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #4
  %60 = load i32, ptr %1, align 4
  ret i32 %60
}

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

declare i32 @__isoc99_scanf(ptr noundef, ...) #2

; 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)) #3

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

declare i32 @puts(ptr noundef) #2

declare i32 @printf(ptr noundef, ...) #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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 #4 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


; 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"

@.str = external hidden unnamed_addr constant [4 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [5 x i8], align 1

; Function Attrs: mustprogress norecurse nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
  %1 = alloca i64, 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #4
  %8 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %9 = load i64, ptr %1, align 8, !tbaa !5
  %10 = add nsw i64 %9, -1
  store i64 %10, ptr %1, align 8, !tbaa !5
  %.not14 = icmp eq i64 %9, 0
  br i1 %.not14, label %._crit_edge17, label %.lr.ph16

.lr.ph16:                                         ; preds = %0, %38
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  %11 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %12 = load i64, ptr %2, align 8, !tbaa !5
  %13 = add nsw i64 %12, 7
  store i64 %13, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %14 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %4)
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = icmp sgt i64 %15, 1
  br i1 %16, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %30, %.lr.ph16
  %.07.lcssa = phi i64 [ -1, %.lr.ph16 ], [ %.1, %30 ]
  %.lcssa = phi i64 [ %15, %.lr.ph16 ], [ %32, %30 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %7) #4
  %17 = xor i64 %.07.lcssa, -1
  %18 = add i64 %.lcssa, %17
  store i64 %18, ptr %7, align 8, !tbaa !5
  %19 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %7)
  %20 = load i64, ptr %19, align 8, !tbaa !5
  store i64 %20, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %7) #4
  %21 = load i64, ptr %2, align 8, !tbaa !5
  %.not9 = icmp slt i64 %20, %21
  br i1 %.not9, label %36, label %34

.lr.ph:                                           ; preds = %.lr.ph16, %30
  %.012 = phi i64 [ %31, %30 ], [ 1, %.lr.ph16 ]
  %.0711 = phi i64 [ %.1, %30 ], [ -1, %.lr.ph16 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %22 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %5)
  %23 = load i64, ptr %5, align 8, !tbaa !5
  %24 = load i64, ptr %4, align 8, !tbaa !5
  %.not10 = icmp eq i64 %23, %24
  br i1 %.not10, label %30, label %25

25:                                               ; preds = %.lr.ph
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %6) #4
  %26 = xor i64 %.0711, -1
  %27 = add i64 %.012, %26
  store i64 %27, ptr %6, align 8, !tbaa !5
  %28 = call noundef nonnull align 8 dereferenceable(8) ptr @_ZSt3minIlERKT_S2_S2_(ptr noundef nonnull align 8 dereferenceable(8) %3, ptr noundef nonnull align 8 dereferenceable(8) %6)
  %29 = load i64, ptr %28, align 8, !tbaa !5
  store i64 %29, ptr %3, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %6) #4
  br label %30

30:                                               ; preds = %25, %.lr.ph
  %.1 = phi i64 [ %.012, %25 ], [ %.0711, %.lr.ph ]
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  %31 = add nuw nsw i64 %.012, 1
  %32 = load i64, ptr %2, align 8, !tbaa !5
  %33 = icmp slt i64 %31, %32
  br i1 %33, label %.lr.ph, label %._crit_edge, !llvm.loop !9

34:                                               ; preds = %._crit_edge
  %35 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %38

36:                                               ; preds = %._crit_edge
  %37 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %20)
  br label %38

38:                                               ; preds = %36, %34
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %39 = load i64, ptr %1, align 8, !tbaa !5
  %40 = add nsw i64 %39, -1
  store i64 %40, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %39, 0
  br i1 %.not, label %._crit_edge17, label %.lr.ph16, !llvm.loop !11

._crit_edge17:                                    ; preds = %38, %0
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %1) #4
  ret i32 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: nofree nounwind
declare noundef i32 @__isoc99_scanf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; 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 #3

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

; Function Attrs: nofree nounwind
declare noundef i32 @puts(ptr nocapture noundef readonly) local_unnamed_addr #2

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

attributes #0 = { mustprogress norecurse nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { 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 #4 = { 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 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = distinct !{!11, !10}


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