• 2019N 4
    y
     
    1
    2
    3
    4
    Վxf
    5
    6
    7
    xf
    8
    9
    10
    11xf
    f(S\񐧁EیO)
    12
    13
    14
    xf
    15
    16
    17
    18
    Վxf
    19
    20
    21
    xf
    22
    23
    24
    25
    Վxf
    26
    27
    28
    xf
    29
    xf
    30
    ʐf(S\)