; LLVM IR from DionysiosB/CodeForces :: 1400-1499 (1469B-RedAndBlue)

; 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 [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
  %11 = alloca i64, align 8
  %12 = alloca i64, align 8
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #3
  %13 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %2)
  br label %14

14:                                               ; preds = %66, %0
  %15 = load i64, ptr %2, align 8, !tbaa !5
  %16 = add nsw i64 %15, -1
  store i64 %16, ptr %2, align 8, !tbaa !5
  %17 = icmp ne i64 %15, 0
  br i1 %17, label %18, label %71

18:                                               ; preds = %14
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #3
  %19 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %3)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 0, ptr %4, align 8, !tbaa !5
  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
  br label %20

20:                                               ; preds = %39, %18
  %21 = load i64, ptr %6, align 8, !tbaa !5
  %22 = load i64, ptr %3, align 8, !tbaa !5
  %23 = icmp slt i64 %21, %22
  br i1 %23, label %25, label %24

24:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %42

25:                                               ; preds = %20
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #3
  %26 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %7)
  %27 = load i64, ptr %7, align 8, !tbaa !5
  %28 = load i64, ptr %4, align 8, !tbaa !5
  %29 = add nsw i64 %28, %27
  store i64 %29, ptr %4, align 8, !tbaa !5
  %30 = load i64, ptr %5, align 8, !tbaa !5
  %31 = load i64, ptr %4, align 8, !tbaa !5
  %32 = icmp sgt i64 %30, %31
  br i1 %32, label %33, label %35

33:                                               ; preds = %25
  %34 = load i64, ptr %5, align 8, !tbaa !5
  br label %37

35:                                               ; preds = %25
  %36 = load i64, ptr %4, align 8, !tbaa !5
  br label %37

37:                                               ; preds = %35, %33
  %38 = phi i64 [ %34, %33 ], [ %36, %35 ]
  store i64 %38, ptr %5, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #3
  br label %39

39:                                               ; preds = %37
  %40 = load i64, ptr %6, align 8, !tbaa !5
  %41 = add nsw i64 %40, 1
  store i64 %41, ptr %6, align 8, !tbaa !5
  br label %20, !llvm.loop !9

42:                                               ; preds = %24
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #3
  %43 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %8)
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #3
  store i64 0, ptr %9, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #3
  store i64 0, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %11) #3
  store i64 0, ptr %11, align 8, !tbaa !5
  br label %44

44:                                               ; preds = %63, %42
  %45 = load i64, ptr %11, align 8, !tbaa !5
  %46 = load i64, ptr %8, align 8, !tbaa !5
  %47 = icmp slt i64 %45, %46
  br i1 %47, label %49, label %48

48:                                               ; preds = %44
  call void @llvm.lifetime.end.p0(i64 8, ptr %11) #3
  br label %66

49:                                               ; preds = %44
  call void @llvm.lifetime.start.p0(i64 8, ptr %12) #3
  %50 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef @.str, ptr noundef %12)
  %51 = load i64, ptr %12, align 8, !tbaa !5
  %52 = load i64, ptr %9, align 8, !tbaa !5
  %53 = add nsw i64 %52, %51
  store i64 %53, ptr %9, align 8, !tbaa !5
  %54 = load i64, ptr %10, align 8, !tbaa !5
  %55 = load i64, ptr %9, align 8, !tbaa !5
  %56 = icmp sgt i64 %54, %55
  br i1 %56, label %57, label %59

57:                                               ; preds = %49
  %58 = load i64, ptr %10, align 8, !tbaa !5
  br label %61

59:                                               ; preds = %49
  %60 = load i64, ptr %9, align 8, !tbaa !5
  br label %61

61:                                               ; preds = %59, %57
  %62 = phi i64 [ %58, %57 ], [ %60, %59 ]
  store i64 %62, ptr %10, align 8, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %12) #3
  br label %63

63:                                               ; preds = %61
  %64 = load i64, ptr %11, align 8, !tbaa !5
  %65 = add nsw i64 %64, 1
  store i64 %65, ptr %11, align 8, !tbaa !5
  br label %44, !llvm.loop !11

66:                                               ; preds = %48
  %67 = load i64, ptr %5, align 8, !tbaa !5
  %68 = load i64, ptr %10, align 8, !tbaa !5
  %69 = add nsw i64 %67, %68
  %70 = call i32 (ptr, ...) @printf(ptr noundef @.str.1, i64 noundef %69)
  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
  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 %14, !llvm.loop !12

71:                                               ; preds = %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #3
  %72 = load i32, ptr %1, align 4
  ret i32 %72
}

; 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 = !{!"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}
!12 = distinct !{!12, !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 [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
  %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
  %.not32 = icmp eq i64 %7, 0
  br i1 %.not32, label %._crit_edge35, label %.lr.ph34

.lr.ph34:                                         ; preds = %0, %._crit_edge30
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %2) #4
  %9 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %2)
  %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.ph34
  %.020.lcssa = phi i64 [ 0, %.lr.ph34 ], [ %18, %.lr.ph ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %4) #4
  %12 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %4)
  %13 = load i64, ptr %4, align 8, !tbaa !5
  %14 = icmp sgt i64 %13, 0
  br i1 %14, label %.lr.ph29, label %._crit_edge30

.lr.ph:                                           ; preds = %.lr.ph34, %.lr.ph
  %.01924 = phi i64 [ %19, %.lr.ph ], [ 0, %.lr.ph34 ]
  %.02023 = phi i64 [ %18, %.lr.ph ], [ 0, %.lr.ph34 ]
  %.02122 = phi i64 [ %17, %.lr.ph ], [ 0, %.lr.ph34 ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %3) #4
  %15 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %3)
  %16 = load i64, ptr %3, align 8, !tbaa !5
  %17 = add nsw i64 %16, %.02122
  %18 = call i64 @llvm.smax.i64(i64 %.02023, i64 %17)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %3) #4
  %19 = add nuw nsw i64 %.01924, 1
  %20 = load i64, ptr %2, align 8, !tbaa !5
  %21 = icmp slt i64 %19, %20
  br i1 %21, label %.lr.ph, label %._crit_edge, !llvm.loop !9

._crit_edge30:                                    ; preds = %.lr.ph29, %._crit_edge
  %.017.lcssa = phi i64 [ 0, %._crit_edge ], [ %29, %.lr.ph29 ]
  %22 = add nuw nsw i64 %.017.lcssa, %.020.lcssa
  %23 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %22)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %4) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %2) #4
  %24 = load i64, ptr %1, align 8, !tbaa !5
  %25 = add nsw i64 %24, -1
  store i64 %25, ptr %1, align 8, !tbaa !5
  %.not = icmp eq i64 %24, 0
  br i1 %.not, label %._crit_edge35, label %.lr.ph34, !llvm.loop !11

.lr.ph29:                                         ; preds = %._crit_edge, %.lr.ph29
  %.027 = phi i64 [ %30, %.lr.ph29 ], [ 0, %._crit_edge ]
  %.01726 = phi i64 [ %29, %.lr.ph29 ], [ 0, %._crit_edge ]
  %.01825 = phi i64 [ %28, %.lr.ph29 ], [ 0, %._crit_edge ]
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %5) #4
  %26 = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %5)
  %27 = load i64, ptr %5, align 8, !tbaa !5
  %28 = add nsw i64 %27, %.01825
  %29 = call i64 @llvm.smax.i64(i64 %.01726, i64 %28)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %5) #4
  %30 = add nuw nsw i64 %.027, 1
  %31 = load i64, ptr %4, align 8, !tbaa !5
  %32 = icmp slt i64 %30, %31
  br i1 %32, label %.lr.ph29, label %._crit_edge30, !llvm.loop !12

._crit_edge35:                                    ; preds = %._crit_edge30, %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 @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", !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}
!12 = distinct !{!12, !10}


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