program kadai
implicit none
integer  ::  a,b,i,k


read(*,*) a,b

if (a<b) then
    k=b
else if (a>b) then
    k=a
end if

do while(k>0)
    if (abs(a-k)==abs(b-k)) then
        write(*,*) k
        stop
    end if
    k=k-1
end do

write(*,*) "IMPOSSIBLE"


stop

end program kadai
; 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.f903d27fc37ce4a5874e6295d54d0e21 = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_3638/source.f\00"
@_QQcl.494D504F535349424C45 = linkonce constant [10 x i8] c"IMPOSSIBLE"
@_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.f903d27fc37ce4a5874e6295d54d0e21, i32 6)
  %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
  %spec.select = call i32 @llvm.smax.i32(i32 %7, i32 %8)
  %9 = icmp sgt i32 %spec.select, 0
  br i1 %9, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0, %20
  %.07 = phi i32 [ %21, %20 ], [ %spec.select, %0 ]
  %10 = sub i32 %7, %.07
  %11 = call i32 @llvm.abs.i32(i32 %10, i1 false)
  %12 = sub i32 %8, %.07
  %13 = call i32 @llvm.abs.i32(i32 %12, i1 false)
  %14 = icmp eq i32 %11, %13
  br i1 %14, label %15, label %20

15:                                               ; preds = %.lr.ph
  %16 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.f903d27fc37ce4a5874e6295d54d0e21, i32 16)
  %17 = call i1 @_FortranAioOutputInteger32(ptr %16, i32 %.07)
  %18 = call i32 @_FortranAioEndIoStatement(ptr %16)
  %19 = call {} @_FortranAStopStatement(i32 0, i1 false, i1 false)
  unreachable

20:                                               ; preds = %.lr.ph
  %21 = add nsw i32 %.07, -1
  %22 = icmp sgt i32 %.07, 1
  br i1 %22, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %20, %0
  %23 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.f903d27fc37ce4a5874e6295d54d0e21, i32 22)
  %24 = call i1 @_FortranAioOutputAscii(ptr %23, ptr nonnull @_QQcl.494D504F535349424C45, i64 10)
  %25 = call i32 @_FortranAioEndIoStatement(ptr %23)
  %26 = 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 @_FortranAioBeginExternalListOutput(i32, ptr, i32) local_unnamed_addr

declare i1 @_FortranAioOutputInteger32(ptr, i32) local_unnamed_addr

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

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

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.smax.i32(i32, i32) #1

attributes #0 = { noreturn }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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"}
