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#include <stdio.h>

int A[100];
int main(void) {
 
    long double w,h,x,y;
    long double a;
    scanf("%llf %llf %llf %llf",&w,&h,&x,&y);
    a = w*h/2;
    int b = 0;
    if(w/2==x&&h/2==y)b=1;
    else b=0;
    printf("%.9llf %d",a,b);
    return 0;
}

; ModuleID = '/data/TheStack_IR/OJ_Samples/Collated/ObjectiveC/Source_265/source.m'
source_filename = "/data/TheStack_IR/OJ_Samples/Collated/ObjectiveC/Source_265/source.m"
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-linux-gnu"

@.str = private unnamed_addr constant [20 x i8] c"%llf %llf %llf %llf\00", align 1
@.str.1 = private unnamed_addr constant [10 x i8] c"%.9llf %d\00", align 1
@A = dso_local local_unnamed_addr global [100 x i32] zeroinitializer, align 16

; Function Attrs: nofree nounwind uwtable
define dso_local i32 @main() local_unnamed_addr #0 {
entry:
  %w = alloca x86_fp80, align 16
  %h = alloca x86_fp80, align 16
  %x = alloca x86_fp80, align 16
  %y = alloca x86_fp80, align 16
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %w) #3
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %h) #3
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %x) #3
  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %y) #3
  %call = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %w, ptr noundef nonnull %h, ptr noundef nonnull %x, ptr noundef nonnull %y)
  %0 = load x86_fp80, ptr %w, align 16, !tbaa !5
  %1 = load x86_fp80, ptr %h, align 16, !tbaa !5
  %div1 = fmul x86_fp80 %0, 0xK3FFE8000000000000000
  %2 = load x86_fp80, ptr %x, align 16, !tbaa !5
  %cmp = fcmp oeq x86_fp80 %div1, %2
  br i1 %cmp, label %land.lhs.true, label %if.else

land.lhs.true:                                    ; preds = %entry
  %div2 = fmul x86_fp80 %1, 0xK3FFE8000000000000000
  %3 = load x86_fp80, ptr %y, align 16, !tbaa !5
  %cmp3 = fcmp oeq x86_fp80 %div2, %3
  br i1 %cmp3, label %if.end, label %if.else

if.else:                                          ; preds = %land.lhs.true, %entry
  br label %if.end

if.end:                                           ; preds = %land.lhs.true, %if.else
  %b.0 = phi i32 [ 0, %if.else ], [ 1, %land.lhs.true ]
  %mul = fmul x86_fp80 %0, %1
  %div = fmul x86_fp80 %mul, 0xK3FFE8000000000000000
  %call4 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, x86_fp80 noundef %div, i32 noundef %b.0)
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %y) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %x) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %h) #3
  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %w) #3
  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: nofree nounwind
declare noundef i32 @printf(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

attributes #0 = { nofree 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 = { nounwind }

!llvm.linker.options = !{}
!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 = !{!"Ubuntu clang version 18.0.0 (++20231007042255+8abb2ace888b-1~exp1~20231007042414.1230)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"long double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
