#import <stdio.h>
typedef long long INT;

int main() {
    INT N, K;
    scanf("%lld %lld", &N, &K);
    INT m = N/K;
    INT count = m*m*m;
    if (K%2==0) {
        INT l = (2*N+K)/(2*K);
        count += l*l*l;
    }
    printf("%lld",count);
}

; ModuleID = '/data/TheStack_IR/OJ_Samples/Collated/ObjectiveC/Source_452/source.m'
source_filename = "/data/TheStack_IR/OJ_Samples/Collated/ObjectiveC/Source_452/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 [10 x i8] c"%lld %lld\00", align 1
@.str.1 = private unnamed_addr constant [5 x i8] c"%lld\00", align 1

; Function Attrs: nofree nounwind uwtable
define dso_local i32 @main() local_unnamed_addr #0 {
entry:
  %N = alloca i64, align 8
  %K = alloca i64, align 8
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %N) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr nonnull %K) #3
  %call = call i32 (ptr, ...) @__isoc99_scanf(ptr noundef nonnull @.str, ptr noundef nonnull %N, ptr noundef nonnull %K)
  %0 = load i64, ptr %N, align 8, !tbaa !5
  %1 = load i64, ptr %K, align 8, !tbaa !5
  %div = sdiv i64 %0, %1
  %mul = mul nsw i64 %div, %div
  %mul1 = mul nsw i64 %mul, %div
  %2 = and i64 %1, 1
  %cmp = icmp eq i64 %2, 0
  br i1 %cmp, label %if.then, label %if.end

if.then:                                          ; preds = %entry
  %mul2 = shl nsw i64 %0, 1
  %add = add nsw i64 %mul2, %1
  %mul3 = shl nsw i64 %1, 1
  %div4 = sdiv i64 %add, %mul3
  %mul5 = mul nsw i64 %div4, %div4
  %mul6 = mul nsw i64 %mul5, %div4
  %add7 = add nsw i64 %mul6, %mul1
  br label %if.end

if.end:                                           ; preds = %if.then, %entry
  %count.0 = phi i64 [ %add7, %if.then ], [ %mul1, %entry ]
  %call8 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1, i64 noundef %count.0)
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %K) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr nonnull %N) #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: 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

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 long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
