"1abc25hriwm4"
// { str → int }
line ← λ (
	'0'>🔎'9'<🔎
	'9'-
	// modifiers are placed in front
	🐘⬅➡
	10×+
)

🐢≠'\n'🚧
// run function on all values, pushing to the stack
⏭️line
// reduce the stack
↘️+

// true 🐋 (+ 🐳 -)
// if true { + } else { - }