; LLVM IR from DionysiosB/CodeForces :: 0800-0899 (839A-AryaAndBran)

; 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 [8 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [4 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 i32, align 4
  %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 i32, align 4
  %10 = alloca i64, align 8
  %11 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  store i32 8, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3, ptr noundef %4)
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store i64 0, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 -1, ptr %7, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  store i64 1, ptr %8, align 8, !tbaa !9
  br label %13

13:                                               ; preds = %52, %0
  %14 = load i64, ptr %8, align 8, !tbaa !9
  %15 = load i64, ptr %3, align 8, !tbaa !9
  %16 = icmp sle i64 %14, %15
  br i1 %16, label %18, label %17

17:                                               ; preds = %13
  store i32 2, ptr %9, align 4
  br label %55

18:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %10)
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  %20 = load i64, ptr %10, align 8, !tbaa !9
  %21 = load i64, ptr %6, align 8, !tbaa !9
  %22 = load i64, ptr %5, align 8, !tbaa !9
  %23 = icmp sgt i64 %21, %22
  %24 = zext i1 %23 to i64
  %25 = load i64, ptr %6, align 8, !tbaa !9
  %26 = load i64, ptr %5, align 8, !tbaa !9
  %27 = sub nsw i64 %25, %26
  %28 = mul nsw i64 %24, %27
  %29 = add nsw i64 %20, %28
  store i64 %29, ptr %11, align 8, !tbaa !9
  %30 = load i64, ptr %11, align 8, !tbaa !9
  %31 = icmp slt i64 %30, 8
  br i1 %31, label %32, label %34

32:                                               ; preds = %18
  %33 = load i64, ptr %11, align 8, !tbaa !9
  br label %35

34:                                               ; preds = %18
  br label %35

35:                                               ; preds = %34, %32
  %36 = phi i64 [ %33, %32 ], [ 8, %34 ]
  store i64 %36, ptr %11, align 8, !tbaa !9
  %37 = load i64, ptr %10, align 8, !tbaa !9
  %38 = load i64, ptr %6, align 8, !tbaa !9
  %39 = add nsw i64 %38, %37
  store i64 %39, ptr %6, align 8, !tbaa !9
  %40 = load i64, ptr %11, align 8, !tbaa !9
  %41 = load i64, ptr %5, align 8, !tbaa !9
  %42 = add nsw i64 %41, %40
  store i64 %42, ptr %5, align 8, !tbaa !9
  %43 = load i64, ptr %5, align 8, !tbaa !9
  %44 = load i64, ptr %4, align 8, !tbaa !9
  %45 = icmp sge i64 %43, %44
  br i1 %45, label %46, label %48

46:                                               ; preds = %35
  %47 = load i64, ptr %8, align 8, !tbaa !9
  store i64 %47, ptr %7, align 8, !tbaa !9
  store i32 2, ptr %9, align 4
  br label %49

48:                                               ; preds = %35
  store i32 0, ptr %9, align 4
  br label %49

49:                                               ; preds = %48, %46
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  %50 = load i32, ptr %9, align 4
  switch i32 %50, label %55 [
    i32 0, label %51
  ]

51:                                               ; preds = %49
  br label %52

52:                                               ; preds = %51
  %53 = load i64, ptr %8, align 8, !tbaa !9
  %54 = add nsw i64 %53, 1
  store i64 %54, ptr %8, align 8, !tbaa !9
  br label %13, !llvm.loop !11

55:                                               ; preds = %49, %17
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %56

56:                                               ; preds = %55
  %57 = load i64, ptr %7, align 8, !tbaa !9
  %58 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i64 noundef %57)
  store i32 0, ptr %1, align 4
  store i32 1, ptr %9, align 4
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  %59 = load i32, ptr %1, align 4
  ret i32 %59
}

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

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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"llvm.loop.mustprogress"}


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

; Function Attrs: mustprogress nofree 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
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  %4 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1, ptr noundef nonnull %2)
  %5 = load i64, ptr %1, align 8, !tbaa !5
  %.not21 = icmp slt i64 %5, 1
  br i1 %.not21, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %0, %15
  %.01624 = phi i64 [ %17, %15 ], [ 1, %0 ]
  %.01823 = phi i64 [ %16, %15 ], [ 0, %0 ]
  %.01922 = phi i64 [ %13, %15 ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %3)
  %7 = load i64, ptr %3, align 8, !tbaa !5
  %8 = icmp sgt i64 %.01823, %.01922
  %9 = sub nsw i64 %.01823, %.01922
  %10 = select i1 %8, i64 %9, i64 0
  %11 = add nsw i64 %7, %10
  %12 = call i64 @llvm.smin.i64(i64 %11, i64 8)
  %13 = add nsw i64 %12, %.01922
  %14 = load i64, ptr %2, align 8, !tbaa !5
  %.not20 = icmp slt i64 %13, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  br i1 %.not20, label %15, label %._crit_edge

15:                                               ; preds = %.lr.ph
  %16 = add nsw i64 %7, %.01823
  %17 = add nuw nsw i64 %.01624, 1
  %18 = load i64, ptr %1, align 8, !tbaa !5
  %.not.not = icmp slt i64 %.01624, %18
  br i1 %.not.not, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge:                                      ; preds = %.lr.ph, %15, %0
  %.2 = phi i64 [ -1, %0 ], [ -1, %15 ], [ %.01624, %.lr.ph ]
  %19 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i64 noundef %.2)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  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: 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 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smin.i64(i64, i64) #3

attributes #0 = { mustprogress nofree 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 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,JumpThreadingPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,ReassociatePass,SROAPass,SimplifyCFGPass