Различные загадки - 6 : Интересное

#!/bin/bash
for R in {0..9}; do
echo R $R
for T in {0..9}; do
echo T $T
for N in {0..9}; do
echo N $N
for K in {0..9}; do
echo K $K
for Z in {0..9}; do
for W in {0..9}; do
for M in {0..9}; do
for G in {0..9}; do
for X in {0..9}; do
for F in {0..9}; do
if [[ $(($R*10+$N+$M)) -eq $(($T*10+$F)) ]] && [[ $(($R*10+$T+$T)) -eq $(($R*10+$K)) ]] && [[ $(($T*10+$F)) -gt 9 ]] && [[ $R*10+$W -gt 9 ]] && [[ $(($N+$R)) -eq $K ]] && [[ $(($Z-$R)) -eq $K ]] && [[ $(($R*10+$X-($R*10+$G))) -eq $R ]] && [[ $(($R*10+$N+$N)) -eq $(($R*10+$W)) ]]; then
echo $R $T $N $K $Z $W $M $G $Z $F
exit;
fi
done
done
done
done
done
done
done
done
done
done