for (let a = 1, b = 2; i >= 0; i--) {
	fn[a][b][i]();
}
/**************************************************/
for(let a=1,b=2;i>=0;i--)fn[a][b][i]();
/**************************************************/
for ( let a = 1, b = 2; i >= 0; i-- )
{
	fn[a][b][i](  );
}