program main
implicit none
integer i,n,j,n_abc
character(50) s

read(*,*) n
read(*,*) s

n_abc=0
i=1
do while(i<n)
   j=index(s(i:),'ABC')
   if(j==0) exit
   n_abc = n_abc + 1
   i=i+j
end do
write(*,'(i0)') n_abc
end program main
; 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"

@_QFEs = internal global [50 x i8] undef
@_QQcl.8924df9a8a279c97b5e74a98c08102bf = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_2676/source.f\00"
@_QQcl.414243 = linkonce constant [3 x i8] c"ABC"
@_QQcl.28693029 = linkonce constant [4 x i8] c"(i0)"
@_QQEnvironmentDefaults = local_unnamed_addr constant ptr null

define void @_QQmain() local_unnamed_addr {
  %1 = alloca i32, align 4
  %2 = tail call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.8924df9a8a279c97b5e74a98c08102bf, i32 6)
  %3 = call i1 @_FortranAioInputInteger(ptr %2, ptr nonnull %1, i32 4)
  %4 = call i32 @_FortranAioEndIoStatement(ptr %2)
  %5 = call ptr @_FortranAioBeginExternalListInput(i32 -1, ptr nonnull @_QQcl.8924df9a8a279c97b5e74a98c08102bf, i32 7)
  %6 = call i1 @_FortranAioInputAscii(ptr %5, ptr nonnull @_QFEs, i64 50)
  %7 = call i32 @_FortranAioEndIoStatement(ptr %5)
  %8 = load i32, ptr %1, align 4, !tbaa !3
  %9 = icmp sgt i32 %8, 1
  br i1 %9, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %0, %18
  %.010 = phi i32 [ %19, %18 ], [ 0, %0 ]
  %.079 = phi i32 [ %20, %18 ], [ 1, %0 ]
  %10 = sext i32 %.079 to i64
  %11 = add nsw i64 %10, -1
  %12 = getelementptr [50 x [1 x i8]], ptr @_QFEs, i64 0, i64 %11
  %13 = sub nsw i64 51, %10
  %14 = call i64 @llvm.smax.i64(i64 %13, i64 0)
  %15 = call i64 @_FortranAIndex1(ptr %12, i64 %14, ptr nonnull @_QQcl.414243, i64 3, i1 false)
  %16 = trunc i64 %15 to i32
  %17 = icmp eq i32 %16, 0
  br i1 %17, label %._crit_edge, label %18

18:                                               ; preds = %.lr.ph
  %19 = add i32 %.010, 1
  %20 = add i32 %.079, %16
  %21 = load i32, ptr %1, align 4, !tbaa !3
  %22 = icmp slt i32 %20, %21
  br i1 %22, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %18, %.lr.ph, %0
  %.0.lcssa = phi i32 [ 0, %0 ], [ %.010, %.lr.ph ], [ %19, %18 ]
  %23 = call ptr @_FortranAioBeginExternalFormattedOutput(ptr nonnull @_QQcl.28693029, i64 4, ptr null, i32 -1, ptr nonnull @_QQcl.8924df9a8a279c97b5e74a98c08102bf, i32 17)
  %24 = call i1 @_FortranAioOutputInteger32(ptr %23, i32 %.0.lcssa)
  %25 = call i32 @_FortranAioEndIoStatement(ptr %23)
  ret void
}

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 i1 @_FortranAioInputAscii(ptr, ptr, i64) local_unnamed_addr

declare i64 @_FortranAIndex1(ptr, i64, ptr, i64, i1) local_unnamed_addr

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

declare i1 @_FortranAioOutputInteger32(ptr, i32) local_unnamed_addr

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i64 @llvm.smax.i64(i64, i64) #0

attributes #0 = { 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"}
