( i = 1 ; i <= 3 ; i++( x = 1; x <= i; x++'*''<br>'
Find the sum of factorials 1! +2! +3! +4! +...+N!
n=prompt('输入' sum=0( x = 1;x <=n ; x++ factorial=1( y=1; y <= x; y++*=factorial（y-1）*y
9*9 multiplication table printing
+=
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