Question: How many heavy (non-hydrogen) atoms does this compound have?
Constraint: The Chemical can be represented with the SMILES CCOc1nc(N)nc2c1ncn2[C@@H]1O[C@@H]2COP(=O)(OC(C)C)O[C@H]2[C@@]1(C)F.
Answer: 29
{#Question|Q!}: {quest#}
{#Constraint:|Description:|!} The {#Molecule|Compound|Chemical!} {#has the|can be represented with the!} {SMILES__description} {SMILES#}.
{#Answer|Result|Answer!}: {answ#}
CCOc1nc(N)nc2c1ncn2[C@@H]1O[C@@H]2COP(=O)(OC(C)C)O[C@H]2[C@@]1(C)F
CCOc1nc(N)nc2c1ncn2[C@@H]1O[C@@H]2COP(=O)(OC(C)C)O[C@H]2[C@@]1(C)F
9-[(4aR,6R,7R,7aR)-7-fluoro-7-methyl-2-oxo-2-propan-2-yloxy-4,4a,6,7a-tetrahydrofuro[3,2-d][1,3,2]dioxaphosphinin-6-yl]-6-ethoxypurin-2-amine
How many heavy (non-hydrogen) atoms does this compound have?