7 13 + clr 7 13 *
2 sqrt
88 77 chs +
123 14 -
11 15 swap dup
2 sqrt sqrt sqrt sqrt pop
1 dup + dup -4 dup + * -3 dup * swap - sqrt -3 chs + swap /
1 dup + dup -1 dup + * -1 dup * swap - sqrt -1 chs + swap /
111 dup dup pop pop pop pop pop