Input: x=t-sin(t),y=1-cos(t)
Write: `x=t-sin(t),y=1-cos(t)`
Output: $$ x=t-sin(t), y=1-cos(t) == x=(-sin(t))+t, y=1-cos(t) $$ Result:$$x=(-sin(t))+t, y=1-cos(t)$$
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