Fully simplify the following expression: $[(2+3+4+5)\div2] + [(2\cdot5+8)\div3]$.
For the first parentheses, I get $2+3+4+5=14$. For the second parentheses, I get $2\cdot5+8=18$. So the expression becomes $[14\div2] + [18\div3]$. For the first division, I get $14\div2=7$. For the second division, I get $18\div3=6$. So the expression becomes $7+6$. For this, I get $7+6=13$. 