; LLVM IR from DionysiosB/CodeForces :: 1200-1299 (1217B-ZmeiGorynich)

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

13:                                               ; preds = %77, %0
  %14 = load i64, ptr %2, align 8, !tbaa !5
  %15 = add nsw i64 %14, -1
  store i64 %15, ptr %2, align 8, !tbaa !5
  %16 = icmp ne i64 %14, 0
  br i1 %16, label %17, label %78

17:                                               ; preds = %13
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  %18 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, 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 !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store i64 0, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  store i64 0, ptr %7, align 8, !tbaa !5
  br label %19

19:                                               ; preds = %47, %17
  %20 = load i64, ptr %7, align 8, !tbaa !5
  %21 = load i64, ptr %3, align 8, !tbaa !5
  %22 = icmp slt i64 %20, %21
  br i1 %22, label %24, label %23

23:                                               ; preds = %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %50

24:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  %25 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str.1, ptr noundef %8, ptr noundef %9)
  %26 = load i64, ptr %5, align 8, !tbaa !5
  %27 = load i64, ptr %8, align 8, !tbaa !5
  %28 = icmp sgt i64 %26, %27
  br i1 %28, label %29, label %31

29:                                               ; preds = %24
  %30 = load i64, ptr %5, align 8, !tbaa !5
  br label %33

31:                                               ; preds = %24
  %32 = load i64, ptr %8, align 8, !tbaa !5
  br label %33

33:                                               ; preds = %31, %29
  %34 = phi i64 [ %30, %29 ], [ %32, %31 ]
  store i64 %34, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  %35 = load i64, ptr %8, align 8, !tbaa !5
  %36 = load i64, ptr %9, align 8, !tbaa !5
  %37 = sub nsw i64 %35, %36
  store i64 %37, ptr %10, align 8, !tbaa !5
  %38 = load i64, ptr %6, align 8, !tbaa !5
  %39 = load i64, ptr %10, align 8, !tbaa !5
  %40 = icmp sgt i64 %38, %39
  br i1 %40, label %41, label %43

41:                                               ; preds = %33
  %42 = load i64, ptr %6, align 8, !tbaa !5
  br label %45

43:                                               ; preds = %33
  %44 = load i64, ptr %10, align 8, !tbaa !5
  br label %45

45:                                               ; preds = %43, %41
  %46 = phi i64 [ %42, %41 ], [ %44, %43 ]
  store i64 %46, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #3
  br label %47

47:                                               ; preds = %45
  %48 = load i64, ptr %7, align 8, !tbaa !5
  %49 = add nsw i64 %48, 1
  store i64 %49, ptr %7, align 8, !tbaa !5
  br label %19, !llvm.loop !9

50:                                               ; preds = %23
  %51 = load i64, ptr %4, align 8, !tbaa !5
  %52 = load i64, ptr %5, align 8, !tbaa !5
  %53 = icmp sgt i64 %51, %52
  br i1 %53, label %54, label %59

54:                                               ; preds = %50
  %55 = load i64, ptr %6, align 8, !tbaa !5
  %56 = icmp sle i64 %55, 0
  br i1 %56, label %57, label %59

57:                                               ; preds = %54
  %58 = call i32 @puts(ptr noundef @.str.2)
  br label %77

59:                                               ; preds = %54, %50
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  store i64 1, ptr %11, align 8, !tbaa !5
  %60 = load i64, ptr %5, align 8, !tbaa !5
  %61 = load i64, ptr %4, align 8, !tbaa !5
  %62 = sub nsw i64 %61, %60
  store i64 %62, ptr %4, align 8, !tbaa !5
  %63 = load i64, ptr %4, align 8, !tbaa !5
  %64 = icmp sgt i64 %63, 0
  br i1 %64, label %65, label %74

65:                                               ; preds = %59
  %66 = load i64, ptr %4, align 8, !tbaa !5
  %67 = load i64, ptr %6, align 8, !tbaa !5
  %68 = add nsw i64 %66, %67
  %69 = sub nsw i64 %68, 1
  %70 = load i64, ptr %6, align 8, !tbaa !5
  %71 = sdiv i64 %69, %70
  %72 = load i64, ptr %11, align 8, !tbaa !5
  %73 = add nsw i64 %72, %71
  store i64 %73, ptr %11, align 8, !tbaa !5
  br label %74

74:                                               ; preds = %65, %59
  %75 = load i64, ptr %11, align 8, !tbaa !5
  %76 = call i32 (ptr, ...) @printf(ptr noundef @.str.3, i64 noundef %75)
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  br label %77

77:                                               ; preds = %74, %57
  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
  br label %13, !llvm.loop !11

78:                                               ; preds = %13
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  ret i32 0
}

; 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 @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 = { 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 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 [5 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [10 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1
@.str.3 = external hidden unnamed_addr constant [6 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
  %4 = alloca i64, align 8
  %5 = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %1) #4
  %6 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %1)
  %7 = load i64, ptr %1, align 8, !tbaa !5
  %8 = add nsw i64 %7, -1
  store i64 %8, ptr %1, align 8, !tbaa !5
  %.not24 = icmp eq i64 %7, 0
  br i1 %.not24, label %._crit_edge27, label %.lr.ph26

.lr.ph26:                                         ; preds = %0, %36
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %2, ptr noundef nonnull %3)
  %10 = load i64, ptr %2, align 8, !tbaa !5
  %11 = icmp sgt i64 %10, 0
  br i1 %11, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %.lr.ph26
  %.018.lcssa = phi i64 [ 0, %.lr.ph26 ], [ %20, %.lr.ph ]
  %.016.lcssa = phi i64 [ 0, %.lr.ph26 ], [ %17, %.lr.ph ]
  %12 = load i64, ptr %3, align 8, !tbaa !5
  %13 = icmp sgt i64 %12, %.016.lcssa
  %14 = icmp slt i64 %.018.lcssa, 1
  %or.cond = select i1 %13, i1 %14, i1 false
  br i1 %or.cond, label %24, label %26

.lr.ph:                                           ; preds = %.lr.ph26, %.lr.ph
  %.01622 = phi i64 [ %17, %.lr.ph ], [ 0, %.lr.ph26 ]
  %.01721 = phi i64 [ %21, %.lr.ph ], [ 0, %.lr.ph26 ]
  %.01820 = phi i64 [ %20, %.lr.ph ], [ 0, %.lr.ph26 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str.1, ptr noundef nonnull %4, ptr noundef nonnull %5)
  %16 = load i64, ptr %4, align 8
  %17 = call i64 @llvm.smax.i64(i64 %.01622, i64 %16)
  %18 = load i64, ptr %5, align 8, !tbaa !5
  %19 = sub nsw i64 %16, %18
  %20 = call i64 @llvm.smax.i64(i64 %.01820, i64 %19)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  %21 = add nuw nsw i64 %.01721, 1
  %22 = load i64, ptr %2, align 8, !tbaa !5
  %23 = icmp slt i64 %21, %22
  br i1 %23, label %.lr.ph, label %._crit_edge, !llvm.loop !9

24:                                               ; preds = %._crit_edge
  %25 = call i32 @puts(ptr noundef nonnull dereferenceable(1) @.str.2)
  br label %36

26:                                               ; preds = %._crit_edge
  %27 = sub nsw i64 %12, %.016.lcssa
  store i64 %27, ptr %3, align 8, !tbaa !5
  %28 = icmp sgt i64 %27, 0
  br i1 %28, label %29, label %34

29:                                               ; preds = %26
  %30 = add nsw i64 %.018.lcssa, -1
  %31 = add i64 %30, %27
  %32 = sdiv i64 %31, %.018.lcssa
  %33 = add nsw i64 %32, 1
  br label %34

34:                                               ; preds = %29, %26
  %.0 = phi i64 [ %33, %29 ], [ 1, %26 ]
  %35 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.3, i64 noundef %.0)
  br label %36

36:                                               ; preds = %34, %24
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %37 = load i64, ptr %1, align 8, !tbaa !5
  %38 = add nsw i64 %37, -1
  store i64 %38, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %37, 0
  br i1 %.not, label %._crit_edge27, label %.lr.ph26, !llvm.loop !11

._crit_edge27:                                    ; preds = %36, %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: 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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smax.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 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,ReassociatePass,SCCPPass,SROAPass,SimplifyCFGPass