implicit none

integer :: A, B

read *,A,B

if (mod(A-B,2) /= 0) then
   write(6,'(a)') 'IMPOSSIBLE'
else
   write(6,'(i0)') (A+B)/2
endif

stop
end
; ModuleID = 'FIRModule'
source_filename = "FIRModule"
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"

@_QQcl.2290abbc5a34b10d5a7b155993a16708 = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_3627/source.f\00"
@_QQcl.286129 = linkonce constant [3 x i8] c"(a)"
@_QQcl.494D504F535349424C45 = linkonce constant [10 x i8] c"IMPOSSIBLE"
@_QQcl.28693029 = linkonce constant [4 x i8] c"(i0)"
@_QQEnvironmentDefaults = local_unnamed_addr constant ptr null

; Function Attrs: noreturn
define void @_QQmain() local_unnamed_addr #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = tail call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.2290abbc5a34b10d5a7b155993a16708, i32 5)
  %4 = call i1 @_FortranAioInputInteger(ptr %3, ptr nonnull %1, i32 4)
  %5 = call i1 @_FortranAioInputInteger(ptr %3, ptr nonnull %2, i32 4)
  %6 = call i32 @_FortranAioEndIoStatement(ptr %3)
  %7 = load i32, ptr %1, align 4, !tbaa !3
  %8 = load i32, ptr %2, align 4, !tbaa !3
  %9 = sub i32 %7, %8
  %10 = and i32 %9, 1
  %.not = icmp eq i32 %10, 0
  br i1 %.not, label %14, label %11

11:                                               ; preds = %0
  %12 = call ptr @_FortranAioBeginExternalFormattedOutput(ptr nonnull @_QQcl.286129, i64 3, ptr null, i32 6, ptr nonnull @_QQcl.2290abbc5a34b10d5a7b155993a16708, i32 8)
  %13 = call i1 @_FortranAioOutputAscii(ptr %12, ptr nonnull @_QQcl.494D504F535349424C45, i64 10)
  br label %21

14:                                               ; preds = %0
  %15 = call ptr @_FortranAioBeginExternalFormattedOutput(ptr nonnull @_QQcl.28693029, i64 4, ptr null, i32 6, ptr nonnull @_QQcl.2290abbc5a34b10d5a7b155993a16708, i32 10)
  %16 = load i32, ptr %1, align 4, !tbaa !3
  %17 = load i32, ptr %2, align 4, !tbaa !3
  %18 = add i32 %17, %16
  %19 = sdiv i32 %18, 2
  %20 = call i1 @_FortranAioOutputInteger32(ptr %15, i32 %19)
  br label %21

21:                                               ; preds = %11, %14
  %.sink = phi ptr [ %12, %11 ], [ %15, %14 ]
  %22 = call i32 @_FortranAioEndIoStatement(ptr %.sink)
  %23 = call {} @_FortranAStopStatement(i32 0, i1 false, i1 false)
  unreachable
}

declare ptr @_FortranAioBeginExternalListInput(i32, ptr, i32) local_unnamed_addr

declare i1 @_FortranAioInputInteger(ptr, ptr, i32) local_unnamed_addr

declare i32 @_FortranAioEndIoStatement(ptr) local_unnamed_addr

declare ptr @_FortranAioBeginExternalFormattedOutput(ptr, i64, ptr, i32, ptr, i32) local_unnamed_addr

declare i1 @_FortranAioOutputAscii(ptr, ptr, i64) local_unnamed_addr

declare i1 @_FortranAioOutputInteger32(ptr, i32) local_unnamed_addr

declare {} @_FortranAStopStatement(i32, i1, i1) local_unnamed_addr

attributes #0 = { noreturn }

!llvm.module.flags = !{!0, !1, !2}

!0 = !{i32 2, !"Debug Info Version", i32 3}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{!4, !4, i64 0}
!4 = !{!"any data access", !5, i64 0}
!5 = !{!"any access", !6, i64 0}
!6 = !{!"Flang Type TBAA Root"}
