returns the result or an arithmetic operation. Accept the following four operators $+,-,*$ & $/.$

$>>>$ task$2(10,"+",5)$

$15$

$>>>$ task$2(10,"-",5)$

$5$

$>>>$ task$2("10","*",5)$

$50$

$>>>$ task$2("10","/","5")$

$2$

$>>>$ task$2("5","-",10)$

$-5$