   program abc150b
      implicit none
      character(50)::s
      integer::i,n,ans
      
         read *, n
         read *, s
         
         ans=0
         do i=1,n-2
            if (s(i:i+2)=='ABC') ans=ans+1
         end do
         
         print *,ans
         
   end program abc150b

; 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.a509b7446eef318dcab0868aaf444d61 = linkonce constant [73 x i8] c"/home/ubuntu/Downloads/TheStack_IR/Collated/Fortran/Source_2682/source.f\00"
@_QQcl.414243 = linkonce constant [3 x i8] c"ABC"
@_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.a509b7446eef318dcab0868aaf444d61, 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.a509b7446eef318dcab0868aaf444d61, 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 = add i32 %8, -2
  %10 = icmp sgt i32 %9, 0
  br i1 %10, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %0
  %11 = zext i32 %9 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 1, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  %.05 = phi i32 [ 0, %.lr.ph.preheader ], [ %spec.select, %.lr.ph ]
  %12 = shl i64 %indvars.iv, 32
  %sext = add i64 %12, 8589934592
  %13 = ashr exact i64 %sext, 32
  %14 = add nsw i64 %indvars.iv, -1
  %15 = getelementptr [50 x [1 x i8]], ptr @_QFEs, i64 0, i64 %14
  %16 = sub nsw i64 %13, %indvars.iv
  %17 = call i64 @llvm.smax.i64(i64 %16, i64 -1)
  %18 = add nsw i64 %17, 1
  %19 = call i32 @_FortranACharacterCompareScalar1(ptr %15, ptr nonnull @_QQcl.414243, i64 %18, i64 3)
  %20 = icmp eq i32 %19, 0
  %21 = zext i1 %20 to i32
  %spec.select = add i32 %.05, %21
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv, %11
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph

._crit_edge:                                      ; preds = %.lr.ph, %0
  %.0.lcssa = phi i32 [ 0, %0 ], [ %spec.select, %.lr.ph ]
  %22 = call ptr @_FortranAioBeginExternalListOutput(i32 -1, ptr nonnull @_QQcl.a509b7446eef318dcab0868aaf444d61, i32 14)
  %23 = call i1 @_FortranAioOutputInteger32(ptr %22, i32 %.0.lcssa)
  %24 = call i32 @_FortranAioEndIoStatement(ptr %22)
  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 i32 @_FortranACharacterCompareScalar1(ptr, ptr, i64, i64) local_unnamed_addr

declare ptr @_FortranAioBeginExternalListOutput(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"}
