v     // Project Euler - Problem 13
      37107287533902102798797998220837590246510135740250
      ...
#     53503534226472524250874054075591789781264330331690
=

         v_v#                   <               <1<
>510p"d"20p>"0"10g20gp10g1-:10p#^_510p20g1-:20p#^_^
v       $<
>"7"10pv>10g20gg" "-!#v_       >10g20gg"0"-00g+00p v
v30p021< >10g1-10p55+/00p   v  |-" "gg02g01p02+1g02<
>0p0::p ^^p021pg02g01+"0"%+55:<>0v
        ^             "#   $< ^g0<
v          p02"e"p010$<
>10g1+:10p20gg"0"-!#v_55+00p>00g:1-00p!#@_54+00g-10g+20gg,v
^                   <       ^                             <