`A=3^10:3^10+5^(2).2^(3).1^2010`
`A=1+25.8.1`
`A=1+200`
`A=201`
`B=109.37-37.10+37`
`B=109.37-37.10+37.1`
`B=37.(109-10+1)`
`B=37.100`
`B-3700`
`C=456-[9^3-(8^2-3^(2).7)^2019]:2^3`
`C=456-[729-(64-9.7)^2019]:8`
`C=456-[729-(64-63)^2019]:8`
`C=456-[729-1^2019]:8`
`C=456-728:8`
`C=456-91`
`C=365`