Given that x and y are any rational numbers, we stipulate: x⊕y=x+y-1, x⊗y=xy-1, try to calculate the value of 4⊗((6⊕8)⊕(3⊗5)).
已知x、y为任意有理数，我们规定：x⊕y=x+y-1，x⊗y=xy-1，试计算4⊗((6⊕8)⊕(3⊗5))的值．
<gadget id="calculator">14 - 1</gadget>
<output>13</output>

<gadget id="calculator">13 + 13</gadget>
<output>26</output>

<gadget id="calculator">4 * 26</gadget>
<output>104</output>

<gadget id="calculator">104 - 1</gadget>
<output>103</output>

<result>103</result>