#943. Fibonacci

when green flag clicked
set [a v] to (0)
set [b v] to (1)
repeat (4)
set [t v] to ((a) + (b))
set [a v] to (b)
set [b v] to (t)
end
say (a)

# When the green flag is clicked
a = 0
b = 1
for _ in range(4):
    t = a + b
    a = b
    b = t
print(a)

let a = 0, b = 0, t = 0;

// When the green flag is clicked
a = 0;
b = 1;
for (let i = 0; i < 4; i++) {
  t = a + b;
  a = b;
  b = t;
}
console.log(a);

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