Question: cannot run this maple

Good day, I cannot run this maple, why?

> solve({a[12]*a[21],a[12]*a[31],a[21]*a[22],a[12]*a[41],a[31]*a[32],a[22]*a[41],a[32]*a[41],a[12]*a[22]=a[12]*a[32],a[21]*a[41]=-a[31]*a[41],a[22]^(2)=a[11]*a[22]+a[12]*a[42],a[11]*a[21]+a[11]*a[31]=a[22]*a[31]-a[21]*a[32],a[21]^(2)+a[11]*a[41]=-a[21]*a[42],a[11]*a[32]=a[32]^(2)-a[12]*a[42],a[22]*a[31]+a[21]*a[32]=a[32]*a[42]-a[22]*a[42],a[31]^(2)-a[11]*a[41]=a[31]*a[42],b[12]*b[21],b[12]*b[31],b[21]*b[22],b[12]*b[41],b[31]*b[32],b[22]*b[41],b[32]*b[41],b[12]*b[22]=b[12]*b[32],b[21]*b[41]=-b[31]*b[41],b[22]^(2)=b[11]*b[22]+b[12]*b[42],b[11]*b[21]+b[11]*b[31]=b[22]*b[31]-b[21]*b[32],b[21]^(2)+b[11]*b[41]=-b[21]*b[42],b[11]*b[32]=b[32]^(2)-b[12]*b[42],b[22]*b[31]+b[21]*b[32]=b[32]*b[42]-b[22]*b[42],b[31]^(2)-b[11]*b[41]=b[31]*b[42],a[11]*b[11]+b[11]^(2)=a[12]*b[21],a[11]*b[12]+b[11]*b[12]=a[12]*b[22]-b[11]*b[32],a[21]*b[11]+b[11]*b[21]=a[22]*b[21]-b[21]*b[41],b[11]*b[22]=a[22]*b[22]-b[12]*b[42],a[31]*b[11]+b[11]*b[21]=a[32]*b[21]-b[22]*b[31],a[31]*b[12]=a[32]*b[22]-b[22]*b[32],a[41]*b[11]+b[21]^(2)=a[42]*b[21],a[42]*b[22]=b[22]*b[42],a[11]*b[31]=-b[11]*b[31],b[12]*b[31]+b[32]^(2)=a[11]*b[32]+a[12]*b[42],a[21]*b[31]+b[21]*b[31]=a[22]*b[41],b[22]*b[31]+b[32]*b[42]=a[21]*b[32]+a[22]*b[42],a[31]*b[31]+b[11]*b[41]=-b[31]*b[42],a[31]*b[32]=a[32]*b[42]-b[32]*b[42],a[41]*b[31]+b[21]*b[41]=a[42]*b[41]-b[41]*b[42],a[41]*b[32]+b[22]*b[41]=a[42]*b[42]-b[42]^(2),a[21]*b[12]],a[12]*b[31],a[21]*b[22],a[12]*b[41],a[41]*b[12],a[32]*b[31],a[41]*b[22],a[32]*b[41],a[12]*b[11]+a[11]*b[12]=a[22]*b[12]-a[12]*b[32],a[12]*b[21]+a[11]*b[22]=a[22]*b[22]-a[12]*b[42],a[21]*b[11]+a[22]*b[31]=a[11]*b[31]+a[21]*b[32],a[21]*b[21]+a[22]*b[41]=a[11]*b[41]+a[21]*b[42],a[32]*b[11]+a[13]*b[12]=a[42]*b[12]-a[32]*b[32],a[32]*b[21]+a[31]*b[22]=a[42]*b[22]-a[32]*b[42],a[41]*b[11]+a[42]*b[31]=a[31]*b[31]+a[41]*b[32],a[41]*b[21]+a[42]*b[41]=a[31]*b[41]+a[41]*b[42],a[11]^(2)+a[11]*b[11]=-a[31]*b[12],a[11]*a[12]+a[21]*b[11]=a[12]*a[22]-a[32]*b[12],a[11]*a[21]=-a[21]*b[11],a[22]*b[11]=a[22(])^(2)-a[42]*b[12],a[11]*a[31]+a[11]*b[21]=a[21]*a[32]-a[31]*b[22],a[12]*b[21]=a[22]*a[32]-a[32]*b[22],a[11]*a[41]+a[21]*b[21]=a[21]*a[42],a[22]*b[21]=a[22]*a[42]-a[42]*b[22],a[11]*a[31]+a[11]*b[31]=-a[31]*b[32],a[11]*a[32]=a[12]*a[42]-a[32]*b[32],a[21]*a[31]+a[21]*b[31]=-a[41]*b[32],a[21]*a[32]+a[22]*b[31]=a[22]*a[42]-a[42]*b[32],a[31(])^(2)+a[11]*b[41]=-a[31]*b[42],a[32]*a[42]=a[32]*b[42],a[31]*a[41]+a[21]*b[41]=a[41]*a[42]-a[41]*b[42],a[22]*b[41]=a[42(])^(2)-a[42]*b[42]},{a[11],a[12],a[21],a[22],a[31],a[32],a[41],a[42],b[11],b[12],b[21],b[22],b[31],b[32],b[41],b[42]});
Error, unable to match delimiters
 

Thanks.

 

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