program ABC077B
    implicit none
    integer(8)::N
    integer(8)::i=1
    read(5,*)N

    do
        if(i**2>N)then
            exit
        end if
        i=i+1
    end do

    print'(i0)',(i-1)**2
end program ABC077B
; 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"

@_QFEi = internal unnamed_addr global i64 1
@_QQcl.01a4f6f5a9098ad0358d3b3d9cc55a85 = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_6758/source.f\00"
@_QQcl.28693029 = linkonce constant [4 x i8] c"(i0)"
@_QQEnvironmentDefaults = local_unnamed_addr constant ptr null

define void @_QQmain() local_unnamed_addr {
  %1 = alloca i64, align 8
  %2 = tail call ptr @_FortranAioBeginExternalListInput(i32 5, ptr nonnull @_QQcl.01a4f6f5a9098ad0358d3b3d9cc55a85, i32 5)
  %3 = call i1 @_FortranAioInputInteger(ptr %2, ptr nonnull %1, i32 8)
  %4 = call i32 @_FortranAioEndIoStatement(ptr %2)
  %5 = load i64, ptr %1, align 8, !tbaa !3
  %_QFEi.promoted = load i64, ptr @_QFEi, align 8, !tbaa !3
  %6 = mul i64 %_QFEi.promoted, %_QFEi.promoted
  %7 = icmp sgt i64 %6, %5
  br i1 %7, label %8, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph
  store i64 %16, ptr @_QFEi, align 8, !tbaa !3
  br label %8

8:                                                ; preds = %._crit_edge, %0
  %9 = call ptr @_FortranAioBeginExternalFormattedOutput(ptr nonnull @_QQcl.28693029, i64 4, ptr null, i32 -1, ptr nonnull @_QQcl.01a4f6f5a9098ad0358d3b3d9cc55a85, i32 14)
  %10 = load i64, ptr @_QFEi, align 8, !tbaa !3
  %11 = add i64 %10, -1
  %12 = mul i64 %11, %11
  %13 = call i1 @_FortranAioOutputInteger64(ptr %9, i64 %12)
  %14 = call i32 @_FortranAioEndIoStatement(ptr %9)
  ret void

.lr.ph:                                           ; preds = %0, %.lr.ph
  %15 = phi i64 [ %16, %.lr.ph ], [ %_QFEi.promoted, %0 ]
  %16 = add i64 %15, 1
  %17 = mul i64 %16, %16
  %18 = icmp sgt i64 %17, %5
  br i1 %18, label %._crit_edge, label %.lr.ph
}

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 @_FortranAioOutputInteger64(ptr, i64) local_unnamed_addr

!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"}
