# Euler 13

Problem 13 is summing a list of fifty digit numbers. I used the gmp library and R to solve in 2 lines:

```
library(gmp)
print(substring((sum(as.bigz(readLines("euler13.txt")))), 0, 10))
```

Not much more to say really. I forgot the problem asks for the first 10 digits, so my first answer was wrong.