hi monks as am not regular to perl, unable to get the output here am sending the i need the ouput that counts the sequences ending with A in the file piRNA_Dataset

>1
AAAAAAAAACAAAAATATTTTT     
>2
AAAAAAAAACAAAAGAACGAAGAAGT     
>3
AAAAAAAAACAACCGAAAAATAGAAAC     
>4
AAAAAAAAACAAGAAGGACTAGACC     
>5
AAAAAAAAACAAGGACTGGT     
>6
AAAAAAAAACAAGGACTGGTT     
>7
AAAAAAAAACAAGGACTGGTTTATCAG     
>8
AAAAAAAAACAAGTTTCTCTGTGACT     
>9
AAAAAAAAACAATACTGTAGTAT     
>10
AAAAAAAAACAATCAGCAGA     
>11
AAAAAAAAACACAGACGTAGAAT     
>12
AAAAAAAAACACAGACGTAGAATTGT     
>13
AAAAAAAAACACGACCGTTCGCT     
>14
AAAAAAAAACACGACCGTTCGCTTTGA     
>15
AAAAAAAAACACGACTGTTCGCTTT     
>16
AAAAAAAAACACTATGAGCCAGAAC     
>17
AAAAAAAAACACTTGTCTAAGGATA     
>18
AAAAAAAAACAGAAACGAGGAAA     
>19
AAAAAAAAACAGGACCGTTCT     
>20
AAAAAAAAACAGGACCGTTCTC     
>21
AAAAAAAAACAGGACCGTTCTCTT     
>22
AAAAAAAAACAGGACCGTTCTCTTT     
>23
AAAAAAAAACAGGACCGTTCTCTTTGAA     
>24
AAAAAAAAACATACTGAAAAACAAC     
>25
AAAAAAAAACATACTGAAAAACAACT     
>26
AAAAAAAAACATGGTTGGTACT     
>27
AAAAAAAAACATGGTTGGTACTCGA     
>28
AAAAAAAAACCCCTAGGAACTGACAC     
>29
AAAAAAAAACCCGTAGAAATCCTCTC     
>30
AAAAAAAAACCCGTTGGAGC     
>31
AAAAAAAAACCGCCATTCCGATCTG     
>32
AAAAAAAAACGAAACCAGAAA     
>33
AAAAAAAAACGAAAGAAAGAAT     
>34
AAAAAAAAACGAAAGCTACGA     
>35
AAAAAAAAACGAATTCTGGA     
>36
AAAAAAAAACGAATTCTGGAC     
>37
AAAAAAAAACGAATTCTGGACC     
>38
AAAAAAAAACGAATTCTGGACCAT     
>39
AAAAAAAAACGAATTCTGGACCATAG     
>40
AAAAAAAAACGAATTCTGGACCATAGT     
>41
AAAAAAAAACGAATTCTGGAT     
>42
AAAAAAAAACGAATTCTGGATT     
>43
AAAAAAAAACGAATTCTGGATTGGT     
>44
AAAAAAAAACGAATTCTGGATTGGTT     
>45
AAAAAAAAACGAATTCTGGATTGGTTA     
>46
AAAAAAAAACGACTCTTCATT     
>47
AAAAAAAAACGACTGAGTAGTTTGAGG     
>48
AAAAAAAAACGACTGTTCGCTT     
>49
AAAAAAAAACGATCGTCTGT     
>50
AAAAAAAAACGATCGTCTGTGCAAG     
>51
AAAAAAAAACGATCGTCTGTGCAAGCA     
>52
AAAAAAAAACGATCGTTTG     
>53
AAAAAAAAACGATGAACACTGT     
>54
AAAAAAAAACGATGAACACTGTTT     
>55
AAAAAAAAACGATGAACACTGTTTT     
>56
AAAAAAAAACGATTTAAGAAC     
>57
AAAAAAAAACGCCAACTCTGGGGGGG     
>58
AAAAAAAAACGCTTTAGAACTGAT     
>59
AAAAAAAAACGGAGCTGGAC     
>60
AAAAAAAAACGGAGCTGGACAAGGC     
>61
AAAAAAAAACGGAGTAGCAGACGT     
>62
AAAAAAAAACGGTAGAAC     
>63
AAAAAAAAACGGTAGAACTTTAGC     
>64
AAAAAAAAACGGTAGAACTTTAGCT     
>65
AAAAAAAAACGGTAGAACTTTAGCTTA     
>66
AAAAAAAAACGGTGCTGAAATTGAAC     
>67
AAAAAAAAACGGTGCTGAAATTGAACA     
>68
AAAAAAAAACGTCGGAACAGC     
>69
AAAAAAAAACGTCGGAATAGCTTAAT     
>70
AAAAAAAAACTAACATCGGCCTGCAGA     
>71
AAAAAAAAACTATGAATTGCAAT     
>72
AAAAAAAAACTATGAATTGCAATT     
>73
AAAAAAAAACTATTCTACTGTAACTC     
>74
AAAAAAAAACTGAAACCGAAACC     
>75
AAAAAAAAACTGAAACTGAAC     
>76
AAAAAAAAACTGAAACTGAACAACT     
>77
AAAAAAAAACTGAAACTGAACAACTGAA     
>78
AAAAAAAAACTGAATCGG     
>79
AAAAAAAAACTGATCAACAGAGGCGGCA     
>80
AAAAAAAAACTGATGGACAAACGCA     
>81
AAAAAAAAACTGATTGT
[download]

piRNA dataset is like this

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