How many total ships arrived at Tokunoshima, Kanaguma, and Wanya on April 17?
return Tokunoshima ;return Kanaguma ;return Wanya ;return arrived ships of #1 ;return arrived ships of #2 ;return arrived ships of #3 ;return #4 on April 17 ;return #5 on April 17 ;return #6 on April 17 ;return number of  #7 ;return number of  #8 ;return number of  #9 ;return sum of #10 ,  #11 ,   #12
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