1. temp subject

Code:
\begin{align*}
& F_0=1     & S_0=1 \\
& F_1=1     & S_1=1+1=1 \\
& F_2=1+1=2 & S_2=1+1+2=4 \\
& F_3=1+2=3 & S_3=1+1+2+3=7 \\
& F_4=2+3=5 & S_4=1+1+2+3+5=12 \\
& F_5=3+5=8 & S_5=1+1+2+3+5+8=2
\end{align*}
When I try the above LaTeX code in regular LaTeX (that is, not forum LaTeX like on here), I get the two columns that I want, but the second column is right aligned. How can I make both columns left align?

I've made many other attempts, including no line end slashes (which put everyting on one line):
Code:
\begin{align*}
& F_0=1     & S_0=1
& F_1=1     & S_1=1+1=1
& F_2=1+1=2 & S_2=1+1+2=4
& F_3=1+2=3 & S_3=1+1+2+3=7
& F_4=2+3=5 & S_4=1+1+2+3+5=12
& F_5=3+5=8 & S_5=1+1+2+3+5+8=2
\end{align*}
...and putting an ampersand at the end of each line:
Code:
\begin{align*}
& F_0=1     & S_0=1 &\\
& F_1=1     & S_1=1+1=1 &\\
& F_2=1+1=2 & S_2=1+1+2=4 &\\
& F_3=1+2=3 & S_3=1+1+2+3=7 &\\
& F_4=2+3=5 & S_4=1+1+2+3+5=12 &\\
& F_5=3+5=8 & S_5=1+1+2+3+5+8=2 &
\end{align*}
But it always right aligns. Thank in advance.

2. Use the array

Code:
begin{array}{l l}
& F_0=1     & S_0=1 \\
& F_1=1     & S_1=1+1=1 \\
& F_2=1+1=2 & S_2=1+1+2=4 \\
& F_3=1+2=3 & S_3=1+1+2+3=7 \\
& F_4=2+3=5 & S_4=1+1+2+3+5=12 \\
& F_5=3+5=8 & S_5=1+1+2+3+5+8=2
\end{array}
if you use r = right c =center l =left