manuel 0 0 0 1 0 0
jaime 0 1 3 0 1 0
pepe 0 0 0 1
sandra 0 1 1 3 0
lucia 0 0 0 0
ruben 0 1 1 1 0
sara   3 3 1 3 3 3
maria  0 3 3 0 1 1
marta  0 1 1 3 3 3 0
miguel 0 0 0 1 1