The common difference of the A.P.: \({a}_{1},{a}_{2},\ldots ,{a}_{m}\) is \(13\) more than the common difference of the …

The common difference of the A.P.: \({a}_{1},{a}_{2},\ldots ,{a}_{m}\) is \(13\) more than the common difference of the A.P.: \({b}_{1},{b}_{2},\ldots ,{b}_{n}\). If \({b}_{31}=−277,{b}_{43}=−385\) and \({a}_{78}=327\), then \({a}_{1}\) is equal to

[JEE Main 2026, 28 Jan (Shift 1)]